904004 has 6 divisors (see below), whose sum is σ = 1582014. Its totient is φ = 452000.

The previous prime is 903979. The next prime is 904019. The reversal of 904004 is 400409.

904004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 719104 + 184900 = 848^2 + 430^2 .

It is an Ulam number.

It is a nialpdrome in base 16.

It is an unprimeable number.

904004 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112997 + ... + 113004.

It is an arithmetic number, because the mean of its divisors is an integer number (263669).

2⁹⁰⁴⁰⁰⁴ is an apocalyptic number.

It is an amenable number.

904004 is a deficient number, since it is larger than the sum of its proper divisors (678010).

904004 is a wasteful number, since it uses less digits than its factorization.

904004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226005 (or 226003 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 904004 is about 950.7912494339. The cubic root of 904004 is about 96.6919051552.

The spelling of 904004 in words is "nine hundred four thousand, four".