22597889 has 4 divisors (see below), whose sum is σ = 22705200. Its totient is φ = 22490580.

The previous prime is 22597849. The next prime is 22597903. The reversal of 22597889 is 98879522.

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.

It is a cyclic number.

It is not a de Polignac number, because 22597889 - 2²⁴ = 5820673 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22597819) 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, 53339 + ... + 53760.

It is an arithmetic number, because the mean of its divisors is an integer number (5676300).

Almost surely, 2^22597889 is an apocalyptic number.

It is an amenable number.

22597889 is a deficient number, since it is larger than the sum of its proper divisors (107311).

22597889 is a wasteful number, since it uses less digits than its factorization.

22597889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107310.

The product of its digits is 725760, while the sum is 50.

The square root of 22597889 is about 4753.7236983232. The cubic root of 22597889 is about 282.7196255928.

The spelling of 22597889 in words is "twenty-two million, five hundred ninety-seven thousand, eight hundred eighty-nine".