22859897 has 2 divisors, whose sum is σ = 22859898. Its totient is φ = 22859896.

The previous prime is 22859887. The next prime is 22859939. The reversal of 22859897 is 79895822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22857961 + 1936 = 4781^2 + 44^2 .

It is a cyclic number.

It is not a de Polignac number, because 22859897 - 2¹² = 22855801 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22859827) 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, 11429948 + 11429949.

It is an arithmetic number, because the mean of its divisors is an integer number (11429949).

Almost surely, 2^22859897 is an apocalyptic number.

It is an amenable number.

22859897 is a deficient number, since it is larger than the sum of its proper divisors (1).

22859897 is an equidigital number, since it uses as much as digits as its factorization.

22859897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 50.

The square root of 22859897 is about 4781.2024638160. The cubic root of 22859897 is about 283.8080805118.

The spelling of 22859897 in words is "twenty-two million, eight hundred fifty-nine thousand, eight hundred ninety-seven".