22715863 has 2 divisors, whose sum is σ = 22715864. Its totient is φ = 22715862.

The previous prime is 22715857. The next prime is 22715867. The reversal of 22715863 is 36851722.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22715863 - 2⁵ = 22715831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22715867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11357931 + 11357932.

It is an arithmetic number, because the mean of its divisors is an integer number (11357932).

Almost surely, 2^22715863 is an apocalyptic number.

22715863 is a deficient number, since it is larger than the sum of its proper divisors (1).

22715863 is an equidigital number, since it uses as much as digits as its factorization.

22715863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 34.

The square root of 22715863 is about 4766.1161337089. The cubic root of 22715863 is about 283.2107583598.

The spelling of 22715863 in words is "twenty-two million, seven hundred fifteen thousand, eight hundred sixty-three".