23393957 has 2 divisors, whose sum is σ = 23393958. Its totient is φ = 23393956.

The previous prime is 23393941. The next prime is 23393969. The reversal of 23393957 is 75939332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14638276 + 8755681 = 3826^2 + 2959^2 .

It is a cyclic number.

It is not a de Polignac number, because 23393957 - 2⁴ = 23393941 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23393987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11696978 + 11696979.

It is an arithmetic number, because the mean of its divisors is an integer number (11696979).

Almost surely, 2^23393957 is an apocalyptic number.

It is an amenable number.

23393957 is a deficient number, since it is larger than the sum of its proper divisors (1).

23393957 is an equidigital number, since it uses as much as digits as its factorization.

23393957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 153090, while the sum is 41.

The square root of 23393957 is about 4836.7299903964. The cubic root of 23393957 is about 286.0012266236.

The spelling of 23393957 in words is "twenty-three million, three hundred ninety-three thousand, nine hundred fifty-seven".