22564797 has 8 divisors (see below), whose sum is σ = 31856256. Its totient is φ = 14158272.

The previous prime is 22564781. The next prime is 22564847. The reversal of 22564797 is 79746522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22564797 - 2⁴ = 22564781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22564757) 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, 221173 + ... + 221274.

It is an arithmetic number, because the mean of its divisors is an integer number (3982032).

Almost surely, 2^22564797 is an apocalyptic number.

It is an amenable number.

22564797 is a deficient number, since it is larger than the sum of its proper divisors (9291459).

22564797 is a wasteful number, since it uses less digits than its factorization.

22564797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442467.

The product of its digits is 211680, while the sum is 42.

The square root of 22564797 is about 4750.2417833201. The cubic root of 22564797 is about 282.5815547554.

The spelling of 22564797 in words is "twenty-two million, five hundred sixty-four thousand, seven hundred ninety-seven".