23913261 has 12 divisors (see below), whose sum is σ = 36043488. Its totient is φ = 15248904.

The previous prime is 23913257. The next prime is 23913269. The reversal of 23913261 is 16231932.

It is not a de Polignac number, because 23913261 - 2² = 23913257 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23913269) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57555 + ... + 57968.

It is an arithmetic number, because the mean of its divisors is an integer number (3003624).

Almost surely, 2^23913261 is an apocalyptic number.

It is an amenable number.

23913261 is a deficient number, since it is larger than the sum of its proper divisors (12130227).

23913261 is a wasteful number, since it uses less digits than its factorization.

23913261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115552 (or 115549 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

The square root of 23913261 is about 4890.1187102155. The cubic root of 23913261 is about 288.1019965699.

The spelling of 23913261 in words is "twenty-three million, nine hundred thirteen thousand, two hundred sixty-one".