23289569 has 2 divisors, whose sum is σ = 23289570. Its totient is φ = 23289568.

The previous prime is 23289559. The next prime is 23289647. The reversal of 23289569 is 96598232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16974400 + 6315169 = 4120^2 + 2513^2 .

It is a cyclic number.

It is not a de Polignac number, because 23289569 - 2²⁴ = 6512353 is a prime.

It is a super-2 number, since 2×23289569² = 1084808048411522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23289559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11644784 + 11644785.

It is an arithmetic number, because the mean of its divisors is an integer number (11644785).

Almost surely, 2^23289569 is an apocalyptic number.

It is an amenable number.

23289569 is a deficient number, since it is larger than the sum of its proper divisors (1).

23289569 is an equidigital number, since it uses as much as digits as its factorization.

23289569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280, while the sum is 44.

The square root of 23289569 is about 4825.9267503766. The cubic root of 23289569 is about 285.5751961932.

The spelling of 23289569 in words is "twenty-three million, two hundred eighty-nine thousand, five hundred sixty-nine".