22979645 has 32 divisors (see below), whose sum is σ = 32659200. Its totient is φ = 15358464.

The previous prime is 22979623. The next prime is 22979653. The reversal of 22979645 is 54697922.

It is a cyclic number.

It is not a de Polignac number, because 22979645 - 2¹⁶ = 22914109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22979596 and 22979605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28001 + ... + 28809.

It is an arithmetic number, because the mean of its divisors is an integer number (1020600).

Almost surely, 2^22979645 is an apocalyptic number.

It is an amenable number.

22979645 is a deficient number, since it is larger than the sum of its proper divisors (9679555).

22979645 is a wasteful number, since it uses less digits than its factorization.

22979645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869.

The product of its digits is 272160, while the sum is 44.

The square root of 22979645 is about 4793.7088981289. The cubic root of 22979645 is about 284.3027791483.

The spelling of 22979645 in words is "twenty-two million, nine hundred seventy-nine thousand, six hundred forty-five".