904812 has 12 divisors (see below), whose sum is σ = 2111256. Its totient is φ = 301600.

The previous prime is 904811. The next prime is 904823. The reversal of 904812 is 218409.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (904811) 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, 37689 + ... + 37712.

It is an arithmetic number, because the mean of its divisors is an integer number (175938).

2⁹⁰⁴⁸¹² is an apocalyptic number.

It is an amenable number.

904812 is an abundant number, since it is smaller than the sum of its proper divisors (1206444).

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

904812 is a wasteful number, since it uses less digits than its factorization.

904812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75408 (or 75406 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 904812 is about 951.2160637836. The cubic root of 904812 is about 96.7207043620.

The spelling of 904812 in words is "nine hundred four thousand, eight hundred twelve".