22395589 has 2 divisors, whose sum is σ = 22395590. Its totient is φ = 22395588.

The previous prime is 22395563. The next prime is 22395617. The reversal of 22395589 is 98559322.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12723489 + 9672100 = 3567^2 + 3110^2 .

It is a cyclic number.

It is not a de Polignac number, because 22395589 - 2⁵ = 22395557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22395539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11197794 + 11197795.

It is an arithmetic number, because the mean of its divisors is an integer number (11197795).

Almost surely, 2^22395589 is an apocalyptic number.

It is an amenable number.

22395589 is a deficient number, since it is larger than the sum of its proper divisors (1).

22395589 is an equidigital number, since it uses as much as digits as its factorization.

22395589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 194400, while the sum is 43.

The square root of 22395589 is about 4732.3978066092. The cubic root of 22395589 is about 281.8734447139.

The spelling of 22395589 in words is "twenty-two million, three hundred ninety-five thousand, five hundred eighty-nine".