904894625 has 8 divisors (see below), whose sum is σ = 1129308648. Its totient is φ = 723915600.

The previous prime is 904894597. The next prime is 904894631. The reversal of 904894625 is 526498409.

It can be written as a sum of positive squares in 4 ways, for example, as 289408144 + 615486481 = 17012^2 + 24809^2 .

It is not a de Polignac number, because 904894625 - 2⁶ = 904894561 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 904894625.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3619454 + ... + 3619703.

It is an arithmetic number, because the mean of its divisors is an integer number (141163581).

Almost surely, 2^904894625 is an apocalyptic number.

It is an amenable number.

904894625 is a deficient number, since it is larger than the sum of its proper divisors (224414023).

904894625 is an equidigital number, since it uses as much as digits as its factorization.

904894625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7239172 (or 7239162 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 47.

The square root of 904894625 is about 30081.4664702371. The cubic root of 904894625 is about 967.2364836394.

The spelling of 904894625 in words is "nine hundred four million, eight hundred ninety-four thousand, six hundred twenty-five".