16864975 has 12 divisors (see below), whose sum is σ = 21257320. Its totient is φ = 13269600.

The previous prime is 16864943. The next prime is 16864993. The reversal of 16864975 is 57946861.

It is not a de Polignac number, because 16864975 - 2⁵ = 16864943 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4005 + ... + 7054.

Almost surely, 2^16864975 is an apocalyptic number.

16864975 is a deficient number, since it is larger than the sum of its proper divisors (4392345).

16864975 is a wasteful number, since it uses less digits than its factorization.

16864975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11130 (or 11125 counting only the distinct ones).

The product of its digits is 362880, while the sum is 46.

The square root of 16864975 is about 4106.6987958700. The cubic root of 16864975 is about 256.4455893211.

The spelling of 16864975 in words is "sixteen million, eight hundred sixty-four thousand, nine hundred seventy-five".