22392971 has 2 divisors, whose sum is σ = 22392972. Its totient is φ = 22392970.

The previous prime is 22392967. The next prime is 22392983. The reversal of 22392971 is 17929322.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22392971 - 2² = 22392967 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22392911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11196485 + 11196486.

It is an arithmetic number, because the mean of its divisors is an integer number (11196486).

Almost surely, 2^22392971 is an apocalyptic number.

22392971 is a deficient number, since it is larger than the sum of its proper divisors (1).

22392971 is an equidigital number, since it uses as much as digits as its factorization.

22392971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13608, while the sum is 35.

The square root of 22392971 is about 4732.1211945596. The cubic root of 22392971 is about 281.8624608034.

The spelling of 22392971 in words is "twenty-two million, three hundred ninety-two thousand, nine hundred seventy-one".