9228972 has 12 divisors (see below), whose sum is σ = 21534296. Its totient is φ = 3076320.

The previous prime is 9228971. The next prime is 9228983. The reversal of 9228972 is 2798229.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 9228972.

It is not an unprimeable number, because it can be changed into a prime (9228971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 384529 + ... + 384552.

Almost surely, 2^9228972 is an apocalyptic number.

It is an amenable number.

9228972 is an abundant number, since it is smaller than the sum of its proper divisors (12305324).

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

9228972 is a wasteful number, since it uses less digits than its factorization.

9228972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769088 (or 769086 counting only the distinct ones).

The product of its digits is 36288, while the sum is 39.

The square root of 9228972 is about 3037.9223163208. The cubic root of 9228972 is about 209.7576342199.

The spelling of 9228972 in words is "nine million, two hundred twenty-eight thousand, nine hundred seventy-two".