22726939 has 2 divisors, whose sum is σ = 22726940. Its totient is φ = 22726938.

The previous prime is 22726931. The next prime is 22726961. The reversal of 22726939 is 93962722.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22726939 - 2³ = 22726931 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22726931) 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, 11363469 + 11363470.

It is an arithmetic number, because the mean of its divisors is an integer number (11363470).

Almost surely, 2^22726939 is an apocalyptic number.

22726939 is a deficient number, since it is larger than the sum of its proper divisors (1).

22726939 is an equidigital number, since it uses as much as digits as its factorization.

22726939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81648, while the sum is 40.

The square root of 22726939 is about 4767.2779444878. The cubic root of 22726939 is about 283.2567810103.

The spelling of 22726939 in words is "twenty-two million, seven hundred twenty-six thousand, nine hundred thirty-nine".