23708939 has 2 divisors, whose sum is σ = 23708940. Its totient is φ = 23708938.

The previous prime is 23708899. The next prime is 23708969. The reversal of 23708939 is 93980732.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23708939 - 2²⁴ = 6931723 is a prime.

It is a super-2 number, since 2×23708939² = 1124227577011442, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23708896 and 23708905.

It is not a weakly prime, because it can be changed into another prime (23708969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11854469 + 11854470.

It is an arithmetic number, because the mean of its divisors is an integer number (11854470).

Almost surely, 2^23708939 is an apocalyptic number.

23708939 is a deficient number, since it is larger than the sum of its proper divisors (1).

23708939 is an equidigital number, since it uses as much as digits as its factorization.

23708939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 23708939 is about 4869.1825802695. The cubic root of 23708939 is about 287.2791054341.

The spelling of 23708939 in words is "twenty-three million, seven hundred eight thousand, nine hundred thirty-nine".