22999957 has 2 divisors, whose sum is σ = 22999958. Its totient is φ = 22999956.

The previous prime is 22999943. The next prime is 22999979. The reversal of 22999957 is 75999922.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16719921 + 6280036 = 4089^2 + 2506^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22999957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22969957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11499978 + 11499979.

It is an arithmetic number, because the mean of its divisors is an integer number (11499979).

Almost surely, 2^22999957 is an apocalyptic number.

It is an amenable number.

22999957 is a deficient number, since it is larger than the sum of its proper divisors (1).

22999957 is an equidigital number, since it uses as much as digits as its factorization.

22999957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 918540, while the sum is 52.

The square root of 22999957 is about 4795.8270402507. The cubic root of 22999957 is about 284.3865207586.

The spelling of 22999957 in words is "twenty-two million, nine hundred ninety-nine thousand, nine hundred fifty-seven".