23933971 has 2 divisors, whose sum is σ = 23933972. Its totient is φ = 23933970.

The previous prime is 23933957. The next prime is 23933983. The reversal of 23933971 is 17933932.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23933971 - 2¹¹ = 23931923 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23933971.

It is not a weakly prime, because it can be changed into another prime (23933071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11966985 + 11966986.

It is an arithmetic number, because the mean of its divisors is an integer number (11966986).

Almost surely, 2^23933971 is an apocalyptic number.

23933971 is a deficient number, since it is larger than the sum of its proper divisors (1).

23933971 is an equidigital number, since it uses as much as digits as its factorization.

23933971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30618, while the sum is 37.

The square root of 23933971 is about 4892.2357874493. The cubic root of 23933971 is about 288.1851424965.

The spelling of 23933971 in words is "twenty-three million, nine hundred thirty-three thousand, nine hundred seventy-one".