22659979 has 2 divisors, whose sum is σ = 22659980. Its totient is φ = 22659978.

The previous prime is 22659911. The next prime is 22659983. The reversal of 22659979 is 97995622.

22659979 is nontrivially palindromic in base 13.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22659979 - 2⁷ = 22659851 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22659379) 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, 11329989 + 11329990.

It is an arithmetic number, because the mean of its divisors is an integer number (11329990).

Almost surely, 2^22659979 is an apocalyptic number.

22659979 is a deficient number, since it is larger than the sum of its proper divisors (1).

22659979 is an equidigital number, since it uses as much as digits as its factorization.

22659979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 612360, while the sum is 49.

The square root of 22659979 is about 4760.2498883987. The cubic root of 22659979 is about 282.9783224540.

The spelling of 22659979 in words is "twenty-two million, six hundred fifty-nine thousand, nine hundred seventy-nine".