22168589 has 2 divisors, whose sum is σ = 22168590. Its totient is φ = 22168588.

The previous prime is 22168583. The next prime is 22168621. The reversal of 22168589 is 98586122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20884900 + 1283689 = 4570^2 + 1133^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22168589 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22168583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11084294 + 11084295.

It is an arithmetic number, because the mean of its divisors is an integer number (11084295).

Almost surely, 2^22168589 is an apocalyptic number.

It is an amenable number.

22168589 is a deficient number, since it is larger than the sum of its proper divisors (1).

22168589 is an equidigital number, since it uses as much as digits as its factorization.

22168589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69120, while the sum is 41.

The square root of 22168589 is about 4708.3531091030. The cubic root of 22168589 is about 280.9178595036.

The spelling of 22168589 in words is "twenty-two million, one hundred sixty-eight thousand, five hundred eighty-nine".