23457449 has 2 divisors, whose sum is σ = 23457450. Its totient is φ = 23457448.

The previous prime is 23457443. The next prime is 23457451. The reversal of 23457449 is 94475432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12355225 + 11102224 = 3515^2 + 3332^2 .

It is a cyclic number.

It is not a de Polignac number, because 23457449 - 2¹⁶ = 23391913 is a prime.

Together with 23457451, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23457443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11728724 + 11728725.

It is an arithmetic number, because the mean of its divisors is an integer number (11728725).

Almost surely, 2^23457449 is an apocalyptic number.

It is an amenable number.

23457449 is a deficient number, since it is larger than the sum of its proper divisors (1).

23457449 is an equidigital number, since it uses as much as digits as its factorization.

23457449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 38.

The square root of 23457449 is about 4843.2890683914. The cubic root of 23457449 is about 286.2597319397.

The spelling of 23457449 in words is "twenty-three million, four hundred fifty-seven thousand, four hundred forty-nine".