16904684 has 6 divisors (see below), whose sum is σ = 29583204. Its totient is φ = 8452340.

The previous prime is 16904663. The next prime is 16904711. The reversal of 16904684 is 48640961.

It is a super-2 number, since 2×16904684² = 571536682279712, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2113082 + ... + 2113089.

It is an arithmetic number, because the mean of its divisors is an integer number (4930534).

Almost surely, 2^16904684 is an apocalyptic number.

It is an amenable number.

16904684 is a deficient number, since it is larger than the sum of its proper divisors (12678520).

16904684 is a wasteful number, since it uses less digits than its factorization.

16904684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4226175 (or 4226173 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 16904684 is about 4111.5306152332. The cubic root of 16904684 is about 256.6467007201.

The spelling of 16904684 in words is "sixteen million, nine hundred four thousand, six hundred eighty-four".