23564413 has 4 divisors (see below), whose sum is σ = 23575648. Its totient is φ = 23553180.

The previous prime is 23564407. The next prime is 23564417. The reversal of 23564413 is 31446532.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 23564413 - 2⁹ = 23563901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23564417) 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, 1431 + ... + 7012.

It is an arithmetic number, because the mean of its divisors is an integer number (5893912).

Almost surely, 2^23564413 is an apocalyptic number.

It is an amenable number.

23564413 is a deficient number, since it is larger than the sum of its proper divisors (11235).

23564413 is an equidigital number, since it uses as much as digits as its factorization.

23564413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11234.

The product of its digits is 8640, while the sum is 28.

The square root of 23564413 is about 4854.3190047627. The cubic root of 23564413 is about 286.6941790493.

The spelling of 23564413 in words is "twenty-three million, five hundred sixty-four thousand, four hundred thirteen".