23612489 has 2 divisors, whose sum is σ = 23612490. Its totient is φ = 23612488.

The previous prime is 23612447. The next prime is 23612503. The reversal of 23612489 is 98421632.

23612489 is nontrivially palindromic in base 13.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19430464 + 4182025 = 4408^2 + 2045^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23612489 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (23615489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11806244 + 11806245.

It is an arithmetic number, because the mean of its divisors is an integer number (11806245).

Almost surely, 2^23612489 is an apocalyptic number.

It is an amenable number.

23612489 is a deficient number, since it is larger than the sum of its proper divisors (1).

23612489 is an equidigital number, since it uses as much as digits as its factorization.

23612489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 35.

The square root of 23612489 is about 4859.2683605662. The cubic root of 23612489 is about 286.8890172933.

The spelling of 23612489 in words is "twenty-three million, six hundred twelve thousand, four hundred eighty-nine".