23923539 has 16 divisors (see below), whose sum is σ = 37527840. Its totient is φ = 15010560.

The previous prime is 23923531. The next prime is 23923553. The reversal of 23923539 is 93532932.

It is not a de Polignac number, because 23923539 - 2³ = 23923531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23923531) 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 in 15 ways as a sum of consecutive naturals, for example, 25602 + ... + 26519.

It is an arithmetic number, because the mean of its divisors is an integer number (2345490).

Almost surely, 2^23923539 is an apocalyptic number.

23923539 is a deficient number, since it is larger than the sum of its proper divisors (13604301).

23923539 is a wasteful number, since it uses less digits than its factorization.

23923539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52147 (or 52141 counting only the distinct ones).

The product of its digits is 43740, while the sum is 36.

The square root of 23923539 is about 4891.1694920540. The cubic root of 23923539 is about 288.1432663935.

The spelling of 23923539 in words is "twenty-three million, nine hundred twenty-three thousand, five hundred thirty-nine".