23975999 has 2 divisors, whose sum is σ = 23976000. Its totient is φ = 23975998.

The previous prime is 23975993. The next prime is 23976019. The reversal of 23975999 is 99957932.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23975999 - 2¹² = 23971903 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23975999.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23975993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11987999 + 11988000.

It is an arithmetic number, because the mean of its divisors is an integer number (11988000).

Almost surely, 2^23975999 is an apocalyptic number.

23975999 is a deficient number, since it is larger than the sum of its proper divisors (1).

23975999 is an equidigital number, since it uses as much as digits as its factorization.

23975999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1377810, while the sum is 53.

The square root of 23975999 is about 4896.5292810316. The cubic root of 23975999 is about 288.3537280134.

The spelling of 23975999 in words is "twenty-three million, nine hundred seventy-five thousand, nine hundred ninety-nine".