22986765 has 12 divisors (see below), whose sum is σ = 39843804. Its totient is φ = 12259584.

The previous prime is 22986757. The next prime is 22986787. The reversal of 22986765 is 56768922.

It can be written as a sum of positive squares in 2 ways, for example, as 4272489 + 18714276 = 2067^2 + 4326^2 .

It is not a de Polignac number, because 22986765 - 2³ = 22986757 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 510817 = 22986765 / (2 + 2 + 9 + 8 + 6 + 7 + 6 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 22986765.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 255364 + ... + 255453.

It is an arithmetic number, because the mean of its divisors is an integer number (3320317).

Almost surely, 2^22986765 is an apocalyptic number.

It is an amenable number.

22986765 is a deficient number, since it is larger than the sum of its proper divisors (16857039).

22986765 is a wasteful number, since it uses less digits than its factorization.

22986765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510828 (or 510825 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 22986765 is about 4794.4514806180. The cubic root of 22986765 is about 284.3321388528.

The spelling of 22986765 in words is "twenty-two million, nine hundred eighty-six thousand, seven hundred sixty-five".