22990689 has 8 divisors (see below), whose sum is σ = 34060320. Its totient is φ = 15327108.

The previous prime is 22990687. The next prime is 22990691. The reversal of 22990689 is 98609922.

It is an interprime number because it is at equal distance from previous prime (22990687) and next prime (22990691).

It is not a de Polignac number, because 22990689 - 2¹ = 22990687 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22990687) 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, 425727 + ... + 425780.

It is an arithmetic number, because the mean of its divisors is an integer number (4257540).

Almost surely, 2^22990689 is an apocalyptic number.

It is an amenable number.

22990689 is a deficient number, since it is larger than the sum of its proper divisors (11069631).

22990689 is an equidigital number, since it uses as much as digits as its factorization.

22990689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851516 (or 851510 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 22990689 is about 4794.8606861931. The cubic root of 22990689 is about 284.3483170875.

The spelling of 22990689 in words is "twenty-two million, nine hundred ninety thousand, six hundred eighty-nine".