23913913 has 4 divisors (see below), whose sum is σ = 25172560. Its totient is φ = 22655268.

The previous prime is 23913889. The next prime is 23913937. The reversal of 23913913 is 31931932.

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 an interprime number because it is at equal distance from previous prime (23913889) and next prime (23913937).

It is a cyclic number.

It is not a de Polignac number, because 23913913 - 2⁵ = 23913881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23913983) 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, 629295 + ... + 629332.

It is an arithmetic number, because the mean of its divisors is an integer number (6293140).

Almost surely, 2^23913913 is an apocalyptic number.

It is an amenable number.

23913913 is a deficient number, since it is larger than the sum of its proper divisors (1258647).

23913913 is a wasteful number, since it uses less digits than its factorization.

23913913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1258646.

The product of its digits is 4374, while the sum is 31.

The square root of 23913913 is about 4890.1853748094. The cubic root of 23913913 is about 288.1046149329.

It can be divided in two parts, 23 and 913913, that added together give a square (913936 = 956²).

The spelling of 23913913 in words is "twenty-three million, nine hundred thirteen thousand, nine hundred thirteen".