23915959 has 2 divisors, whose sum is σ = 23915960. Its totient is φ = 23915958.

The previous prime is 23915939. The next prime is 23915963. The reversal of 23915959 is 95951932.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23915959 - 2⁷ = 23915831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23915939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11957979 + 11957980.

It is an arithmetic number, because the mean of its divisors is an integer number (11957980).

Almost surely, 2^23915959 is an apocalyptic number.

23915959 is a deficient number, since it is larger than the sum of its proper divisors (1).

23915959 is an equidigital number, since it uses as much as digits as its factorization.

23915959 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 109350, while the sum is 43.

The square root of 23915959 is about 4890.3945648587. The cubic root of 23915959 is about 288.1128311435.

The spelling of 23915959 in words is "twenty-three million, nine hundred fifteen thousand, nine hundred fifty-nine".