He likely doesn't have one. He is a perfected being.
However, if you are talking about the fictionalized accounts of him in some superhero story, he likely has the weakness that if he does something against God's will, he will "fall from grace" and lose his immortality.
There are thought to be seven archangels but only three are mentioned in the Bible - Michael, Gabriel and Raphael.
Both Michael and Gabriel are archangels, but they have different duties. Michael is the warrior and Gabriel is the messenger. There will never be any conflict between those two archangels.
Michael is an archangel and archangels do not die.
Michael and Gabriel
September 29 is the feast of the archangels.
Michael has always been an archangel and archangels do not die.
Michael and Gabriel.
The only two archangels who are named in the Bible are Michael and Gabriel. Gabriel announced Jesus' conception and his birth. Michael was identified as the fallen angel.
No. Archangels are the highest rank of angels in heaven. The only archangel that the Jewish faith recognizes is Michael. According to Protestants, archangels include Michael and Gabriel. Catholics recognize Michael, Gabriel, Raphael and Uriel. Muslims believe in the archangels Michael, Gabriel, Raphael and Azarel. Many other religions and traditions also believe in archangels. You may be associating the term archangel with evil because Lucifer, aka Satan, was an archangel until his fall.
The feast of the Archangels is September 29.
St. Michael and St. Gabriel.
Michael is an archangel and had no parents. He was created by God as a pure spirit.