23725913 has 4 divisors (see below), whose sum is σ = 23858640. Its totient is φ = 23593188.

The previous prime is 23725901. The next prime is 23725939. The reversal of 23725913 is 31952732.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23725913 - 2¹⁴ = 23709529 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 23725913.

It is not an unprimeable number, because it can be changed into a prime (23725993) 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, 66095 + ... + 66452.

It is an arithmetic number, because the mean of its divisors is an integer number (5964660).

Almost surely, 2^23725913 is an apocalyptic number.

It is an amenable number.

23725913 is a deficient number, since it is larger than the sum of its proper divisors (132727).

23725913 is a wasteful number, since it uses less digits than its factorization.

23725913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132726.

The product of its digits is 11340, while the sum is 32.

The square root of 23725913 is about 4870.9252714448. The cubic root of 23725913 is about 287.3476465626.

The spelling of 23725913 in words is "twenty-three million, seven hundred twenty-five thousand, nine hundred thirteen".