23564223 has 8 divisors (see below), whose sum is σ = 34910000. Its totient is φ = 15709464.

The previous prime is 23564207. The next prime is 23564231. The reversal of 23564223 is 32246532.

23564223 is a `hidden beast` number, since 235 + 6 + 422 + 3 = 666.

It is not a de Polignac number, because 23564223 - 2⁴ = 23564207 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 872749 = 23564223 / (2 + 3 + 5 + 6 + 4 + 2 + 2 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23564273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 436348 + ... + 436401.

It is an arithmetic number, because the mean of its divisors is an integer number (4363750).

Almost surely, 2^23564223 is an apocalyptic number.

23564223 is a deficient number, since it is larger than the sum of its proper divisors (11345777).

23564223 is an equidigital number, since it uses as much as digits as its factorization.

23564223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872758 (or 872752 counting only the distinct ones).

The product of its digits is 8640, while the sum is 27.

The square root of 23564223 is about 4854.2994345219. The cubic root of 23564223 is about 286.6934085082.

The spelling of 23564223 in words is "twenty-three million, five hundred sixty-four thousand, two hundred twenty-three".