654904 has 16 divisors (see below), whose sum is σ = 1246320. Its totient is φ = 322560.

The previous prime is 654889. The next prime is 654917. The reversal of 654904 is 409456.

It is a congruent number.

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, 9 + ... + 1144.

It is an arithmetic number, because the mean of its divisors is an integer number (77895).

2⁶⁵⁴⁹⁰⁴ is an apocalyptic number.

It is an amenable number.

654904 is a deficient number, since it is larger than the sum of its proper divisors (591416).

654904 is a wasteful number, since it uses less digits than its factorization.

654904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230 (or 1226 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 654904 is about 809.2613916406. The cubic root of 654904 is about 86.8412129884.

The spelling of 654904 in words is "six hundred fifty-four thousand, nine hundred four".