22564723 has 16 divisors (see below), whose sum is σ = 24710400. Its totient is φ = 20532960.

The previous prime is 22564699. The next prime is 22564741. The reversal of 22564723 is 32746522.

It is a cyclic number.

It is not a de Polignac number, because 22564723 - 2⁹ = 22564211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22564753) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57813 + ... + 58201.

It is an arithmetic number, because the mean of its divisors is an integer number (1544400).

Almost surely, 2^22564723 is an apocalyptic number.

22564723 is a deficient number, since it is larger than the sum of its proper divisors (2145677).

22564723 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (22564722) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (522).

22564723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522.

The product of its digits is 20160, while the sum is 31.

The square root of 22564723 is about 4750.2339942365. The cubic root of 22564723 is about 282.5812458515.

The spelling of 22564723 in words is "twenty-two million, five hundred sixty-four thousand, seven hundred twenty-three".