22368691 has 2 divisors, whose sum is σ = 22368692. Its totient is φ = 22368690.

The previous prime is 22368679. The next prime is 22368707. The reversal of 22368691 is 19686322.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22368691 - 2¹⁵ = 22335923 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22368691.

It is not a weakly prime, because it can be changed into another prime (22368641) 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, 11184345 + 11184346.

It is an arithmetic number, because the mean of its divisors is an integer number (11184346).

Almost surely, 2^22368691 is an apocalyptic number.

22368691 is a deficient number, since it is larger than the sum of its proper divisors (1).

22368691 is an equidigital number, since it uses as much as digits as its factorization.

22368691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 37.

The square root of 22368691 is about 4729.5550530679. Note that the first 3 decimals coincide. The cubic root of 22368691 is about 281.7605524043.

The spelling of 22368691 in words is "twenty-two million, three hundred sixty-eight thousand, six hundred ninety-one".