22964643 has 12 divisors (see below), whose sum is σ = 35722960. Its totient is φ = 14132016.

The previous prime is 22964639. The next prime is 22964657. The reversal of 22964643 is 34646922.

22964643 is a `hidden beast` number, since 2 + 2 + 9 + 6 + 4 + 643 = 666.

It is not a de Polignac number, because 22964643 - 2² = 22964639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22964598 and 22964607.

It is not an unprimeable number, because it can be changed into a prime (22964663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 98023 + ... + 98256.

Almost surely, 2^22964643 is an apocalyptic number.

22964643 is a deficient number, since it is larger than the sum of its proper divisors (12758317).

22964643 is a wasteful number, since it uses less digits than its factorization.

22964643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196298 (or 196295 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The square root of 22964643 is about 4792.1438834826. The cubic root of 22964643 is about 284.2408977344.

The spelling of 22964643 in words is "twenty-two million, nine hundred sixty-four thousand, six hundred forty-three".