22608865 has 4 divisors (see below), whose sum is σ = 27130644. Its totient is φ = 18087088.

The previous prime is 22608863. The next prime is 22608881. The reversal of 22608865 is 56880622.

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 7273809 + 15335056 = 2697^2 + 3916^2 .

It is a cyclic number.

It is not a de Polignac number, because 22608865 - 2¹ = 22608863 is a prime.

It is a super-2 number, since 2×22608865² = 1022321553176450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22608863) 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, 2260882 + ... + 2260891.

It is an arithmetic number, because the mean of its divisors is an integer number (6782661).

Almost surely, 2^22608865 is an apocalyptic number.

It is an amenable number.

22608865 is a deficient number, since it is larger than the sum of its proper divisors (4521779).

22608865 is an equidigital number, since it uses as much as digits as its factorization.

22608865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4521778.

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 22608865 is about 4754.8780215690. The cubic root of 22608865 is about 282.7653913476.

The spelling of 22608865 in words is "twenty-two million, six hundred eight thousand, eight hundred sixty-five".