22657223 has 4 divisors (see below), whose sum is σ = 22673400. Its totient is φ = 22641048.

The previous prime is 22657213. The next prime is 22657237. The reversal of 22657223 is 32275622.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22657223 - 2²² = 18462919 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 (22657213) 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, 5765 + ... + 8862.

It is an arithmetic number, because the mean of its divisors is an integer number (5668350).

Almost surely, 2^22657223 is an apocalyptic number.

22657223 is a deficient number, since it is larger than the sum of its proper divisors (16177).

22657223 is a wasteful number, since it uses less digits than its factorization.

22657223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16176.

The product of its digits is 10080, while the sum is 29.

The square root of 22657223 is about 4759.9603989949. The cubic root of 22657223 is about 282.9668496591.

The spelling of 22657223 in words is "twenty-two million, six hundred fifty-seven thousand, two hundred twenty-three".