908640925 has 12 divisors (see below), whose sum is σ = 1130347296. Its totient is φ = 724569200.

The previous prime is 908640917. The next prime is 908640949. The reversal of 908640925 is 529046809.

It is not a de Polignac number, because 908640925 - 2³ = 908640917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50659 + ... + 66208.

It is an arithmetic number, because the mean of its divisors is an integer number (94195608).

Almost surely, 2^908640925 is an apocalyptic number.

It is an amenable number.

908640925 is a deficient number, since it is larger than the sum of its proper divisors (221706371).

908640925 is a wasteful number, since it uses less digits than its factorization.

908640925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117188 (or 117183 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 908640925 is about 30143.6713921845. The cubic root of 908640925 is about 968.5694450878.

The spelling of 908640925 in words is "nine hundred eight million, six hundred forty thousand, nine hundred twenty-five".