23961599 has 2 divisors, whose sum is σ = 23961600. Its totient is φ = 23961598.

The previous prime is 23961571. The next prime is 23961601. The reversal of 23961599 is 99516932.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23961599 - 2²⁴ = 7184383 is a prime.

Together with 23961601, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23961499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11980799 + 11980800.

It is an arithmetic number, because the mean of its divisors is an integer number (11980800).

Almost surely, 2^23961599 is an apocalyptic number.

23961599 is a deficient number, since it is larger than the sum of its proper divisors (1).

23961599 is an equidigital number, since it uses as much as digits as its factorization.

23961599 is an evil number, because the sum of its binary digits is even.

The product of its digits is 131220, while the sum is 44.

The square root of 23961599 is about 4895.0586309053. The cubic root of 23961599 is about 288.2959879758.

The spelling of 23961599 in words is "twenty-three million, nine hundred sixty-one thousand, five hundred ninety-nine".