22704589 has 2 divisors, whose sum is σ = 22704590. Its totient is φ = 22704588.

The previous prime is 22704581. The next prime is 22704629. The reversal of 22704589 is 98540722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15468489 + 7236100 = 3933^2 + 2690^2 .

It is a cyclic number.

It is not a de Polignac number, because 22704589 - 2³ = 22704581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22704581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11352294 + 11352295.

It is an arithmetic number, because the mean of its divisors is an integer number (11352295).

Almost surely, 2^22704589 is an apocalyptic number.

It is an amenable number.

22704589 is a deficient number, since it is larger than the sum of its proper divisors (1).

22704589 is an equidigital number, since it uses as much as digits as its factorization.

22704589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 22704589 is about 4764.9332629115. The cubic root of 22704589 is about 283.1638976197.

It can be divided in two parts, 2270 and 4589, that added together give a cube (6859 = 19³).

The spelling of 22704589 in words is "twenty-two million, seven hundred four thousand, five hundred eighty-nine".