16905996 has 36 divisors (see below), whose sum is σ = 44319912. Its totient is φ = 5635008.

The previous prime is 16905971. The next prime is 16906027. The reversal of 16905996 is 69950961.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7725 + ... + 9668.

Almost surely, 2^16905996 is an apocalyptic number.

It is an amenable number.

16905996 is an abundant number, since it is smaller than the sum of its proper divisors (27413916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16905996 is a wasteful number, since it uses less digits than its factorization.

16905996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17412 (or 17398 counting only the distinct ones).

The product of its (nonzero) digits is 131220, while the sum is 45.

The square root of 16905996 is about 4111.6901634243. The cubic root of 16905996 is about 256.6533401375.

The spelling of 16905996 in words is "sixteen million, nine hundred five thousand, nine hundred ninety-six".