23908957 has 2 divisors, whose sum is σ = 23908958. Its totient is φ = 23908956.

The previous prime is 23908939. The next prime is 23908981. The reversal of 23908957 is 75980932.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14243076 + 9665881 = 3774^2 + 3109^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23908957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23908057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11954478 + 11954479.

It is an arithmetic number, because the mean of its divisors is an integer number (11954479).

Almost surely, 2^23908957 is an apocalyptic number.

It is an amenable number.

23908957 is a deficient number, since it is larger than the sum of its proper divisors (1).

23908957 is an equidigital number, since it uses as much as digits as its factorization.

23908957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 23908957 is about 4889.6786192960. The cubic root of 23908957 is about 288.0847109671.

The spelling of 23908957 in words is "twenty-three million, nine hundred eight thousand, nine hundred fifty-seven".