22375889 has 2 divisors, whose sum is σ = 22375890. Its totient is φ = 22375888.

The previous prime is 22375883. The next prime is 22375909. The reversal of 22375889 is 98857322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20976400 + 1399489 = 4580^2 + 1183^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22375889 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22375883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11187944 + 11187945.

It is an arithmetic number, because the mean of its divisors is an integer number (11187945).

Almost surely, 2^22375889 is an apocalyptic number.

It is an amenable number.

22375889 is a deficient number, since it is larger than the sum of its proper divisors (1).

22375889 is an equidigital number, since it uses as much as digits as its factorization.

22375889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 44.

The square root of 22375889 is about 4730.3159513927. The cubic root of 22375889 is about 281.7907716506.

The spelling of 22375889 in words is "twenty-two million, three hundred seventy-five thousand, eight hundred eighty-nine".