23911963 has 2 divisors, whose sum is σ = 23911964. Its totient is φ = 23911962.

The previous prime is 23911919. The next prime is 23911981. The reversal of 23911963 is 36911932.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23911963 - 2¹⁷ = 23780891 is a prime.

It is not a weakly prime, because it can be changed into another prime (23911903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11955981 + 11955982.

It is an arithmetic number, because the mean of its divisors is an integer number (11955982).

Almost surely, 2^23911963 is an apocalyptic number.

23911963 is a deficient number, since it is larger than the sum of its proper divisors (1).

23911963 is an equidigital number, since it uses as much as digits as its factorization.

23911963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8748, while the sum is 34.

The square root of 23911963 is about 4889.9859918000. The cubic root of 23911963 is about 288.0967837976.

The spelling of 23911963 in words is "twenty-three million, nine hundred eleven thousand, nine hundred sixty-three".