9120904 has 16 divisors (see below), whose sum is σ = 18417420. Its totient is φ = 4209600.

The previous prime is 9120889. The next prime is 9120941. The reversal of 9120904 is 4090219.

It can be written as a sum of positive squares in 2 ways, for example, as 9012004 + 108900 = 3002^2 + 330^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43747 + ... + 43954.

Almost surely, 2^9120904 is an apocalyptic number.

It is an amenable number.

9120904 is an abundant number, since it is smaller than the sum of its proper divisors (9296516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9120904 is a wasteful number, since it uses less digits than its factorization.

9120904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87720 (or 87716 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 9120904 is about 3020.0834425559. The cubic root of 9120904 is about 208.9356883389.

The spelling of 9120904 in words is "nine million, one hundred twenty thousand, nine hundred four".