23765939 has 4 divisors (see below), whose sum is σ = 23890560. Its totient is φ = 23641320.

The previous prime is 23765927. The next prime is 23765957. The reversal of 23765939 is 93956732.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23765939 - 2²⁰ = 22717363 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23765939.

It is not an unprimeable number, because it can be changed into a prime (23765909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62024 + ... + 62405.

It is an arithmetic number, because the mean of its divisors is an integer number (5972640).

Almost surely, 2^23765939 is an apocalyptic number.

23765939 is a deficient number, since it is larger than the sum of its proper divisors (124621).

23765939 is a wasteful number, since it uses less digits than its factorization.

23765939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124620.

The product of its digits is 306180, while the sum is 44.

The square root of 23765939 is about 4875.0322050218. The cubic root of 23765939 is about 287.5091424944.

The spelling of 23765939 in words is "twenty-three million, seven hundred sixty-five thousand, nine hundred thirty-nine".