904323121 has 4 divisors (see below), whose sum is σ = 973886452. Its totient is φ = 834759792.

The previous prime is 904323113. The next prime is 904323127. The reversal of 904323121 is 121323409.

904323121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 271096225 + 633226896 = 16465^2 + 25164^2 .

It is a cyclic number.

It is not a de Polignac number, because 904323121 - 2³ = 904323113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (904323127) 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, 34781646 + ... + 34781671.

It is an arithmetic number, because the mean of its divisors is an integer number (243471613).

Almost surely, 2^904323121 is an apocalyptic number.

It is an amenable number.

904323121 is a deficient number, since it is larger than the sum of its proper divisors (69563331).

904323121 is a wasteful number, since it uses less digits than its factorization.

904323121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69563330.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 904323121 is about 30071.9656989695. The cubic root of 904323121 is about 967.0328150141.

The spelling of 904323121 in words is "nine hundred four million, three hundred twenty-three thousand, one hundred twenty-one".