616904 has 16 divisors (see below), whose sum is σ = 1177200. Its totient is φ = 302992.

The previous prime is 616897. The next prime is 616909. The reversal of 616904 is 409616.

It is not an unprimeable number, because it can be changed into a prime (616909) 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, 182 + ... + 1125.

It is an arithmetic number, because the mean of its divisors is an integer number (73575).

2⁶¹⁶⁹⁰⁴ is an apocalyptic number.

It is an amenable number.

616904 is a deficient number, since it is larger than the sum of its proper divisors (560296).

616904 is a wasteful number, since it uses less digits than its factorization.

616904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1372 (or 1368 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 616904 is about 785.4323650067. The cubic root of 616904 is about 85.1280193181.

The spelling of 616904 in words is "six hundred sixteen thousand, nine hundred four".