904331 has 4 divisors (see below), whose sum is σ = 913752. Its totient is φ = 894912.

The previous prime is 904303. The next prime is 904357. The reversal of 904331 is 133409.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133409 = 71 ⋅1879.

It is a cyclic number.

It is not a de Polignac number, because 904331 - 2¹⁴ = 887947 is a prime.

It is a super-2 number, since 2×904331² = 1635629115122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (904361) 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 in 3 ways as a sum of consecutive naturals, for example, 4565 + ... + 4758.

It is an arithmetic number, because the mean of its divisors is an integer number (228438).

2⁹⁰⁴³³¹ is an apocalyptic number.

904331 is a deficient number, since it is larger than the sum of its proper divisors (9421).

904331 is an equidigital number, since it uses as much as digits as its factorization.

904331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9420.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 904331 is about 950.9631959230. The cubic root of 904331 is about 96.7035623461.

The spelling of 904331 in words is "nine hundred four thousand, three hundred thirty-one".