22679989 has 4 divisors (see below), whose sum is σ = 24014124. Its totient is φ = 21345856.

The previous prime is 22679971. The next prime is 22680017. The reversal of 22679989 is 98997622.

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

It can be written as a sum of positive squares in 2 ways, for example, as 20857489 + 1822500 = 4567^2 + 1350^2 .

It is a cyclic number.

It is not a de Polignac number, because 22679989 - 2⁹ = 22679477 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 (22679689) 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, 667042 + ... + 667075.

It is an arithmetic number, because the mean of its divisors is an integer number (6003531).

Almost surely, 2^22679989 is an apocalyptic number.

It is an amenable number.

22679989 is a deficient number, since it is larger than the sum of its proper divisors (1334135).

22679989 is a wasteful number, since it uses less digits than its factorization.

22679989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1334134.

The product of its digits is 979776, while the sum is 52.

The square root of 22679989 is about 4762.3512050247. The cubic root of 22679989 is about 283.0615930565.

The spelling of 22679989 in words is "twenty-two million, six hundred seventy-nine thousand, nine hundred eighty-nine".