22427579 has 2 divisors, whose sum is σ = 22427580. Its totient is φ = 22427578.

The previous prime is 22427569. The next prime is 22427597. The reversal of 22427579 is 97572422.

Together with next prime (22427597) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22427579 - 2⁴ = 22427563 is a prime.

It is not a weakly prime, because it can be changed into another prime (22427519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11213789 + 11213790.

It is an arithmetic number, because the mean of its divisors is an integer number (11213790).

Almost surely, 2^22427579 is an apocalyptic number.

22427579 is a deficient number, since it is larger than the sum of its proper divisors (1).

22427579 is an equidigital number, since it uses as much as digits as its factorization.

22427579 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70560, while the sum is 38.

The square root of 22427579 is about 4735.7764938814. The cubic root of 22427579 is about 282.0075907955.

The spelling of 22427579 in words is "twenty-two million, four hundred twenty-seven thousand, five hundred seventy-nine".