904031489 has 4 divisors (see below), whose sum is σ = 916415556. Its totient is φ = 891647424.

The previous prime is 904031461. The next prime is 904031497. The reversal of 904031489 is 984130409.

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 398681089 + 505350400 = 19967^2 + 22480^2 .

It is a cyclic number.

It is not a de Polignac number, because 904031489 - 2¹² = 904027393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (904031789) 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, 6191924 + ... + 6192069.

It is an arithmetic number, because the mean of its divisors is an integer number (229103889).

Almost surely, 2^904031489 is an apocalyptic number.

It is an amenable number.

904031489 is a deficient number, since it is larger than the sum of its proper divisors (12384067).

904031489 is a wasteful number, since it uses less digits than its factorization.

904031489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12384066.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 904031489 is about 30067.1164064664. The cubic root of 904031489 is about 966.9288521611.

The spelling of 904031489 in words is "nine hundred four million, thirty-one thousand, four hundred eighty-nine".