22372957 has 2 divisors, whose sum is σ = 22372958. Its totient is φ = 22372956.

The previous prime is 22372919. The next prime is 22372981. The reversal of 22372957 is 75927322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13003236 + 9369721 = 3606^2 + 3061^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22372957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22372907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11186478 + 11186479.

It is an arithmetic number, because the mean of its divisors is an integer number (11186479).

Almost surely, 2^22372957 is an apocalyptic number.

It is an amenable number.

22372957 is a deficient number, since it is larger than the sum of its proper divisors (1).

22372957 is an equidigital number, since it uses as much as digits as its factorization.

22372957 is an odious number, because the sum of its binary digits is odd.

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

The square root of 22372957 is about 4730.0060253661. The cubic root of 22372957 is about 281.7784630651.

The spelling of 22372957 in words is "twenty-two million, three hundred seventy-two thousand, nine hundred fifty-seven".