9221904 has 40 divisors (see below), whose sum is σ = 26471520. Its totient is φ = 3073824.

The previous prime is 9221893. The next prime is 9221921. The reversal of 9221904 is 4091229.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10242 + ... + 11105.

It is an arithmetic number, because the mean of its divisors is an integer number (661788).

Almost surely, 2^9221904 is an apocalyptic number.

It is an amenable number.

9221904 is an abundant number, since it is smaller than the sum of its proper divisors (17249616).

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

9221904 is a wasteful number, since it uses less digits than its factorization.

9221904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21364 (or 21352 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 9221904 is about 3036.7587984560. The cubic root of 9221904 is about 209.7040729785.

The spelling of 9221904 in words is "nine million, two hundred twenty-one thousand, nine hundred four".