22972357 has 4 divisors (see below), whose sum is σ = 23315296. Its totient is φ = 22629420.

The previous prime is 22972343. The next prime is 22972381. The reversal of 22972357 is 75327922.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22972357 - 2¹⁵ = 22939589 is a prime.

It is a super-2 number, since 2×22972357² = 1055458372270898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22972757) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171369 + ... + 171502.

It is an arithmetic number, because the mean of its divisors is an integer number (5828824).

Almost surely, 2^22972357 is an apocalyptic number.

It is an amenable number.

22972357 is a deficient number, since it is larger than the sum of its proper divisors (342939).

22972357 is an equidigital number, since it uses as much as digits as its factorization.

22972357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342938.

The product of its digits is 52920, while the sum is 37.

The square root of 22972357 is about 4792.9486748765. The cubic root of 22972357 is about 284.2727204052.

The spelling of 22972357 in words is "twenty-two million, nine hundred seventy-two thousand, three hundred fifty-seven".