22865939 has 2 divisors, whose sum is σ = 22865940. Its totient is φ = 22865938.

The previous prime is 22865903. The next prime is 22865957. The reversal of 22865939 is 93956822.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22865939 - 2¹⁶ = 22800403 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22865939.

It is not a weakly prime, because it can be changed into another prime (22865989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11432969 + 11432970.

It is an arithmetic number, because the mean of its divisors is an integer number (11432970).

Almost surely, 2^22865939 is an apocalyptic number.

22865939 is a deficient number, since it is larger than the sum of its proper divisors (1).

22865939 is an equidigital number, since it uses as much as digits as its factorization.

22865939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280, while the sum is 44.

The square root of 22865939 is about 4781.8342714904. The cubic root of 22865939 is about 283.8330823359.

The spelling of 22865939 in words is "twenty-two million, eight hundred sixty-five thousand, nine hundred thirty-nine".