904724 has 12 divisors (see below), whose sum is σ = 1626324. Its totient is φ = 440064.

The previous prime is 904721. The next prime is 904727. The reversal of 904724 is 427409.

904724 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (904721) and next prime (904727).

It can be written as a sum of positive squares in 2 ways, for example, as 672400 + 232324 = 820^2 + 482^2 .

It is a junction number, because it is equal to n+sod(n) for n = 904693 and 904702.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 904724.

It is not an unprimeable number, because it can be changed into a prime (904721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2909 + ... + 3204.

It is an arithmetic number, because the mean of its divisors is an integer number (135527).

2⁹⁰⁴⁷²⁴ is an apocalyptic number.

It is an amenable number.

904724 is a deficient number, since it is larger than the sum of its proper divisors (721600).

904724 is a wasteful number, since it uses less digits than its factorization.

904724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6154 (or 6152 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 904724 is about 951.1698060809. The cubic root of 904724 is about 96.7175686469.

The spelling of 904724 in words is "nine hundred four thousand, seven hundred twenty-four".