22972929 has 16 divisors (see below), whose sum is σ = 36529152. Its totient is φ = 12556368.

The previous prime is 22972921. The next prime is 22972931. The reversal of 22972929 is 92927922.

It is not a de Polignac number, because 22972929 - 2³ = 22972921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22972921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23299 + ... + 24264.

It is an arithmetic number, because the mean of its divisors is an integer number (2283072).

Almost surely, 2^22972929 is an apocalyptic number.

It is an amenable number.

22972929 is a deficient number, since it is larger than the sum of its proper divisors (13556223).

22972929 is a wasteful number, since it uses less digits than its factorization.

22972929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47596.

The product of its digits is 81648, while the sum is 42.

The square root of 22972929 is about 4793.0083454966. The cubic root of 22972929 is about 284.2750798010.

The spelling of 22972929 in words is "twenty-two million, nine hundred seventy-two thousand, nine hundred twenty-nine".