22664459 has 2 divisors, whose sum is σ = 22664460. Its totient is φ = 22664458.

The previous prime is 22664423. The next prime is 22664471. The reversal of 22664459 is 95446622.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22664459 - 2⁸ = 22664203 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22664659) 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 as a sum of consecutive naturals, namely, 11332229 + 11332230.

It is an arithmetic number, because the mean of its divisors is an integer number (11332230).

Almost surely, 2^22664459 is an apocalyptic number.

22664459 is a deficient number, since it is larger than the sum of its proper divisors (1).

22664459 is an equidigital number, since it uses as much as digits as its factorization.

22664459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 38.

The square root of 22664459 is about 4760.7204286746. The cubic root of 22664459 is about 282.9969700051.

The spelling of 22664459 in words is "twenty-two million, six hundred sixty-four thousand, four hundred fifty-nine".