22427609 has 2 divisors, whose sum is σ = 22427610. Its totient is φ = 22427608.

The previous prime is 22427597. The next prime is 22427621. The reversal of 22427609 is 90672422.

It is a balanced prime because it is at equal distance from previous prime (22427597) and next prime (22427621).

It can be written as a sum of positive squares in only one way, i.e., 15976009 + 6451600 = 3997^2 + 2540^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22427609 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22420609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11213804 + 11213805.

It is an arithmetic number, because the mean of its divisors is an integer number (11213805).

Almost surely, 2^22427609 is an apocalyptic number.

It is an amenable number.

22427609 is a deficient number, since it is larger than the sum of its proper divisors (1).

22427609 is an equidigital number, since it uses as much as digits as its factorization.

22427609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 22427609 is about 4735.7796612596. The cubic root of 22427609 is about 282.0077165368.

The spelling of 22427609 in words is "twenty-two million, four hundred twenty-seven thousand, six hundred nine".