22427569 has 2 divisors, whose sum is σ = 22427570. Its totient is φ = 22427568.

The previous prime is 22427563. The next prime is 22427579. The reversal of 22427569 is 96572422.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11458225 + 10969344 = 3385^2 + 3312^2 .

It is a cyclic number.

It is not a de Polignac number, because 22427569 - 2⁷ = 22427441 is a prime.

It is a super-2 number, since 2×22427569² = 1005991702499522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22427563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11213784 + 11213785.

It is an arithmetic number, because the mean of its divisors is an integer number (11213785).

Almost surely, 2^22427569 is an apocalyptic number.

It is an amenable number.

22427569 is a deficient number, since it is larger than the sum of its proper divisors (1).

22427569 is an equidigital number, since it uses as much as digits as its factorization.

22427569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 37.

The square root of 22427569 is about 4735.7754380883. The cubic root of 22427569 is about 282.0075488816.

The spelling of 22427569 in words is "twenty-two million, four hundred twenty-seven thousand, five hundred sixty-nine".