23957443 has 2 divisors, whose sum is σ = 23957444. Its totient is φ = 23957442.

The previous prime is 23957441. The next prime is 23957473. The reversal of 23957443 is 34475932.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23957443 - 2¹ = 23957441 is a prime.

Together with 23957441, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (23957441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11978721 + 11978722.

It is an arithmetic number, because the mean of its divisors is an integer number (11978722).

Almost surely, 2^23957443 is an apocalyptic number.

23957443 is a deficient number, since it is larger than the sum of its proper divisors (1).

23957443 is an equidigital number, since it uses as much as digits as its factorization.

23957443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 37.

The square root of 23957443 is about 4894.6341027701. The cubic root of 23957443 is about 288.2793192579.

The spelling of 23957443 in words is "twenty-three million, nine hundred fifty-seven thousand, four hundred forty-three".