904659 has 16 divisors (see below), whose sum is σ = 1439232. Its totient is φ = 494208.

The previous prime is 904643. The next prime is 904661. The reversal of 904659 is 956409.

It is a happy number.

It is not a de Polignac number, because 904659 - 2⁴ = 904643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (904619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 454 + ... + 1419.

It is an arithmetic number, because the mean of its divisors is an integer number (89952).

2⁹⁰⁴⁶⁵⁹ is an apocalyptic number.

904659 is a deficient number, since it is larger than the sum of its proper divisors (534573).

904659 is a wasteful number, since it uses less digits than its factorization.

904659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1906.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 904659 is about 951.1356370150. The cubic root of 904659 is about 96.7152523631.

The spelling of 904659 in words is "nine hundred four thousand, six hundred fifty-nine".