22715867 has 2 divisors, whose sum is σ = 22715868. Its totient is φ = 22715866.

The previous prime is 22715863. The next prime is 22715909. The reversal of 22715867 is 76851722.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22715867 - 2² = 22715863 is a prime.

It is a super-2 number, since 2×22715867² = 1032021227123378, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22715867.

It is not a weakly prime, because it can be changed into another prime (22715863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11357933 + 11357934.

It is an arithmetic number, because the mean of its divisors is an integer number (11357934).

Almost surely, 2^22715867 is an apocalyptic number.

22715867 is a deficient number, since it is larger than the sum of its proper divisors (1).

22715867 is an equidigital number, since it uses as much as digits as its factorization.

22715867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47040, while the sum is 38.

The square root of 22715867 is about 4766.1165533377. The cubic root of 22715867 is about 283.2107749832.

The spelling of 22715867 in words is "twenty-two million, seven hundred fifteen thousand, eight hundred sixty-seven".