22865893 has 2 divisors, whose sum is σ = 22865894. Its totient is φ = 22865892.

The previous prime is 22865837. The next prime is 22865903. The reversal of 22865893 is 39856822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12510369 + 10355524 = 3537^2 + 3218^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22865893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22865393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11432946 + 11432947.

It is an arithmetic number, because the mean of its divisors is an integer number (11432947).

Almost surely, 2^22865893 is an apocalyptic number.

It is an amenable number.

22865893 is a deficient number, since it is larger than the sum of its proper divisors (1).

22865893 is an equidigital number, since it uses as much as digits as its factorization.

22865893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 43.

The square root of 22865893 is about 4781.8294616182. The cubic root of 22865893 is about 283.8328920043.

The spelling of 22865893 in words is "twenty-two million, eight hundred sixty-five thousand, eight hundred ninety-three".