904704 has 80 divisors (see below), whose sum is σ = 2618880. Its totient is φ = 276480.

The previous prime is 904697. The next prime is 904721. The reversal of 904704 is 407409.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29169 + ... + 29199.

It is an arithmetic number, because the mean of its divisors is an integer number (32736).

2⁹⁰⁴⁷⁰⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 904704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1309440).

904704 is an abundant number, since it is smaller than the sum of its proper divisors (1714176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

904704 is a wasteful number, since it uses less digits than its factorization.

904704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71 (or 55 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 904704 is about 951.1592926529. The cubic root of 904704 is about 96.7168559560.

The spelling of 904704 in words is "nine hundred four thousand, seven hundred four".