16972908 has 12 divisors (see below), whose sum is σ = 39603480. Its totient is φ = 5657632.

The previous prime is 16972889. The next prime is 16972931. The reversal of 16972908 is 80927961.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 16972908.

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, 707193 + ... + 707216.

It is an arithmetic number, because the mean of its divisors is an integer number (3300290).

Almost surely, 2^16972908 is an apocalyptic number.

It is an amenable number.

16972908 is an abundant number, since it is smaller than the sum of its proper divisors (22630572).

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

16972908 is a wasteful number, since it uses less digits than its factorization.

16972908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1414416 (or 1414414 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 16972908 is about 4119.8189280598. The cubic root of 16972908 is about 256.9914959310.

The spelling of 16972908 in words is "sixteen million, nine hundred seventy-two thousand, nine hundred eight".