23942939 has 2 divisors, whose sum is σ = 23942940. Its totient is φ = 23942938.

The previous prime is 23942923. The next prime is 23942969. The reversal of 23942939 is 93924932.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23942939 - 2⁴ = 23942923 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 23942896 and 23942905.

It is not a weakly prime, because it can be changed into another prime (23942969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11971469 + 11971470.

It is an arithmetic number, because the mean of its divisors is an integer number (11971470).

Almost surely, 2^23942939 is an apocalyptic number.

23942939 is a deficient number, since it is larger than the sum of its proper divisors (1).

23942939 is an equidigital number, since it uses as much as digits as its factorization.

23942939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 104976, while the sum is 41.

The square root of 23942939 is about 4893.1522559593. The cubic root of 23942939 is about 288.2211320895.

The spelling of 23942939 in words is "twenty-three million, nine hundred forty-two thousand, nine hundred thirty-nine".