23992739 has 2 divisors, whose sum is σ = 23992740. Its totient is φ = 23992738.

The previous prime is 23992699. The next prime is 23992741. The reversal of 23992739 is 93729932.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23992739 is a prime.

Together with 23992741, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23992739.

It is not a weakly prime, because it can be changed into another prime (23992769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11996369 + 11996370.

It is an arithmetic number, because the mean of its divisors is an integer number (11996370).

Almost surely, 2^23992739 is an apocalyptic number.

23992739 is a deficient number, since it is larger than the sum of its proper divisors (1).

23992739 is an equidigital number, since it uses as much as digits as its factorization.

23992739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 183708, while the sum is 44.

The square root of 23992739 is about 4898.2383567973. The cubic root of 23992739 is about 288.4208217548.

The spelling of 23992739 in words is "twenty-three million, nine hundred ninety-two thousand, seven hundred thirty-nine".