16998956 has 12 divisors (see below), whose sum is σ = 32036592. Its totient is φ = 7845648.

The previous prime is 16998923. The next prime is 16998973. The reversal of 16998956 is 65989961.

It is a junction number, because it is equal to n+sod(n) for n = 16998898 and 16998907.

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, 163400 + ... + 163503.

It is an arithmetic number, because the mean of its divisors is an integer number (2669716).

Almost surely, 2^16998956 is an apocalyptic number.

It is an amenable number.

16998956 is a deficient number, since it is larger than the sum of its proper divisors (15037636).

16998956 is a wasteful number, since it uses less digits than its factorization.

16998956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326920 (or 326918 counting only the distinct ones).

The product of its digits is 1049760, while the sum is 53.

The square root of 16998956 is about 4122.9790200776. The cubic root of 16998956 is about 257.1228953934.

The spelling of 16998956 in words is "sixteen million, nine hundred ninety-eight thousand, nine hundred fifty-six".