23645913 has 4 divisors (see below), whose sum is σ = 31527888. Its totient is φ = 15763940.

The previous prime is 23645903. The next prime is 23645917. The reversal of 23645913 is 31954632.

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 a de Polignac number, because none of the positive numbers 2^k-23645913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23645917) 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, 3940983 + ... + 3940988.

It is an arithmetic number, because the mean of its divisors is an integer number (7881972).

Almost surely, 2^23645913 is an apocalyptic number.

It is an amenable number.

23645913 is a deficient number, since it is larger than the sum of its proper divisors (7881975).

23645913 is an equidigital number, since it uses as much as digits as its factorization.

23645913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7881974.

The product of its digits is 19440, while the sum is 33.

The square root of 23645913 is about 4862.7063452362. The cubic root of 23645913 is about 287.0243193870.

The spelling of 23645913 in words is "twenty-three million, six hundred forty-five thousand, nine hundred thirteen".