612904 has 16 divisors (see below), whose sum is σ = 1199520. Its totient is φ = 293040.

The previous prime is 612889. The next prime is 612923. The reversal of 612904 is 409216.

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, 1482 + ... + 1849.

It is an arithmetic number, because the mean of its divisors is an integer number (74970).

2⁶¹²⁹⁰⁴ is an apocalyptic number.

It is an amenable number.

612904 is a deficient number, since it is larger than the sum of its proper divisors (586616).

612904 is a wasteful number, since it uses less digits than its factorization.

612904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3360 (or 3356 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 612904 is about 782.8818557100. The cubic root of 612904 is about 84.9436304457.

The spelling of 612904 in words is "six hundred twelve thousand, nine hundred four".