22864689 has 12 divisors (see below), whose sum is σ = 33147972. Its totient is φ = 15187200.

The previous prime is 22864687. The next prime is 22864693. The reversal of 22864689 is 98646822.

It can be written as a sum of positive squares in 2 ways, for example, as 20250000 + 2614689 = 4500^2 + 1617^2 .

It is not a de Polignac number, because 22864689 - 2¹ = 22864687 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22864687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1992 + ... + 7049.

It is an arithmetic number, because the mean of its divisors is an integer number (2762331).

Almost surely, 2^22864689 is an apocalyptic number.

It is an amenable number.

22864689 is a deficient number, since it is larger than the sum of its proper divisors (10283283).

22864689 is a wasteful number, since it uses less digits than its factorization.

22864689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9328 (or 9325 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The square root of 22864689 is about 4781.7035667218. The cubic root of 22864689 is about 283.8279101914.

The spelling of 22864689 in words is "twenty-two million, eight hundred sixty-four thousand, six hundred eighty-nine".