Learn how to spell, say, and write number 17 in English words. Find the currency names and spellings for 17 in different countries and regions. 17 in Words = Seventeen. Learn pronunciation, place values, mathematical properties, and practical applications. Number Names or Numbers in Words are the English words we use to represent/spell numbers. Instead of writing numbers using digits (like 1, 2, 3), we spell them out in words (like one, two, three). The given images below shows the word representation of number names from 1 to 20. Learn how to write 17 in words as Seventeen using the place value chart. Find out the properties and facts of 17, such as whether it is a prime, perfect, or composite number.