22997598 has 32 divisors (see below), whose sum is σ = 51136512. Its totient is φ = 6847200.

The previous prime is 22997593. The next prime is 22997621. The reversal of 22997598 is 89579922.

It is a self number, because there is not a number n which added to its sum of digits gives 22997598.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22997591) 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, 2338 + ... + 7173.

It is an arithmetic number, because the mean of its divisors is an integer number (1598016).

Almost surely, 2^22997598 is an apocalyptic number.

22997598 is an abundant number, since it is smaller than the sum of its proper divisors (28138914).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22997598 is a wasteful number, since it uses less digits than its factorization.

22997598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9560.

The product of its digits is 816480, while the sum is 51.

The square root of 22997598 is about 4795.5810909628. The cubic root of 22997598 is about 284.3767976862.

The spelling of 22997598 in words is "twenty-two million, nine hundred ninety-seven thousand, five hundred ninety-eight".