16972516 has 12 divisors (see below), whose sum is σ = 32402160. Its totient is φ = 7714760.

The previous prime is 16972489. The next prime is 16972517. The reversal of 16972516 is 61527961.

It is not an unprimeable number, because it can be changed into a prime (16972517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192826 + ... + 192913.

It is an arithmetic number, because the mean of its divisors is an integer number (2700180).

Almost surely, 2^16972516 is an apocalyptic number.

It is an amenable number.

16972516 is a deficient number, since it is larger than the sum of its proper divisors (15429644).

16972516 is a wasteful number, since it uses less digits than its factorization.

16972516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385754 (or 385752 counting only the distinct ones).

The product of its digits is 22680, while the sum is 37.

The square root of 16972516 is about 4119.7713528787. The cubic root of 16972516 is about 256.9895174556.

The spelling of 16972516 in words is "sixteen million, nine hundred seventy-two thousand, five hundred sixteen".