It can be, when used with nouns to indicate how many. Numbers can also be nouns and pronouns.
Eighteen can be both an adjective, meaning one more than seventeen, or a noun meaning the cardinal number that is the sum of seventeen and one.
17 is spelled seventeen.
seventeen
three hundred seventeen
Eight hundred and seventeen.
"Seventeen" is an adjective in the sentence "He played when he was seventeen" because it describes the noun "he." It tells us the age of the person mentioned.
Eighteen can be both an adjective, meaning one more than seventeen, or a noun meaning the cardinal number that is the sum of seventeen and one.
seventeen million = 17,000,000 seventeen thousand = 17,000 seventy = 70 seventeen million seventeen thousand seventy = 17,017,070
It's written seventeen.
One.
289
At Seventeen was created in 1974.
seventeen
seventeen eightieths
17.017 is seventeen and seventeen thousandths.
"Seventeen" in Polish is "siedemnaście".
What is Seventeen and four thousandths