17996 has 12 divisors (see below), whose sum is σ = 34440. Its totient is φ = 8160.

The previous prime is 17989. The next prime is 18013. The reversal of 17996 is 69971.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161 + ... + 248.

It is an arithmetic number, because the mean of its divisors is an integer number (2870).

2¹⁷⁹⁹⁶ is an apocalyptic number.

It is an amenable number.

17996 is a deficient number, since it is larger than the sum of its proper divisors (16444).

17996 is a wasteful number, since it uses less digits than its factorization.

17996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424 (or 422 counting only the distinct ones).

The product of its digits is 3402, while the sum is 32.

The square root of 17996 is about 134.1491707019. The cubic root of 17996 is about 26.2054725084.

It can be divided in two parts, 1 and 7996, that added together give a palindrome (7997).

The spelling of 17996 in words is "seventeen thousand, nine hundred ninety-six".