22936689 has 20 divisors (see below), whose sum is σ = 36281124. Its totient is φ = 14390784.

The previous prime is 22936687. The next prime is 22936691. The reversal of 22936689 is 98663922.

It is an interprime number because it is at equal distance from previous prime (22936687) and next prime (22936691).

It can be written as a sum of positive squares in 2 ways, for example, as 21233664 + 1703025 = 4608^2 + 1305^2 .

It is not a de Polignac number, because 22936689 - 2¹ = 22936687 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (22936687) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6952 + ... + 9705.

Almost surely, 2^22936689 is an apocalyptic number.

It is an amenable number.

22936689 is a deficient number, since it is larger than the sum of its proper divisors (13344435).

22936689 is a wasteful number, since it uses less digits than its factorization.

22936689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16686 (or 16677 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 22936689 is about 4789.2263467078. The cubic root of 22936689 is about 284.1255189726.

The spelling of 22936689 in words is "twenty-two million, nine hundred thirty-six thousand, six hundred eighty-nine".