904804 has 6 divisors (see below), whose sum is σ = 1583414. Its totient is φ = 452400.

The previous prime is 904801. The next prime is 904811. The reversal of 904804 is 408409.

It can be written as a sum of positive squares in only one way, i.e., 902500 + 2304 = 950^2 + 48^2 .

It is not an unprimeable number, because it can be changed into a prime (904801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113097 + ... + 113104.

2⁹⁰⁴⁸⁰⁴ is an apocalyptic number.

It is an amenable number.

904804 is a deficient number, since it is larger than the sum of its proper divisors (678610).

904804 is a wasteful number, since it uses less digits than its factorization.

904804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226205 (or 226203 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 904804 is about 951.2118586309. The cubic root of 904804 is about 96.7204193054.

The spelling of 904804 in words is "nine hundred four thousand, eight hundred four".