0
It is: 7000 because 439 is less than 500
The ISBN of Promise Me - novel - is 978-0-7528-7439-5.
The CAS registry number of iron (Fe) is 7439-89-6
The phone number of the People Inc. is: 716-817-7439.
The country code and area code of Soekami District- Nara, Japan is 81, (0)7439.