23744489 has 2 divisors, whose sum is σ = 23744490. Its totient is φ = 23744488.

The previous prime is 23744473. The next prime is 23744503. The reversal of 23744489 is 98444732.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20475625 + 3268864 = 4525^2 + 1808^2 .

It is a cyclic number.

It is not a de Polignac number, because 23744489 - 2⁴ = 23744473 is a prime.

It is a super-2 number, since 2×23744489² = 1127601515742242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23744449) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11872244 + 11872245.

It is an arithmetic number, because the mean of its divisors is an integer number (11872245).

Almost surely, 2^23744489 is an apocalyptic number.

It is an amenable number.

23744489 is a deficient number, since it is larger than the sum of its proper divisors (1).

23744489 is an equidigital number, since it uses as much as digits as its factorization.

23744489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 193536, while the sum is 41.

The square root of 23744489 is about 4872.8317229307. The cubic root of 23744489 is about 287.4226191243.

The spelling of 23744489 in words is "twenty-three million, seven hundred forty-four thousand, four hundred eighty-nine".