23985943 has 4 divisors (see below), whose sum is σ = 24571008. Its totient is φ = 23400880.

The previous prime is 23985893. The next prime is 23985947. The reversal of 23985943 is 34958932.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23985943 - 2⁹ = 23985431 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23985943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23985947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 292471 + ... + 292552.

It is an arithmetic number, because the mean of its divisors is an integer number (6142752).

Almost surely, 2^23985943 is an apocalyptic number.

23985943 is a deficient number, since it is larger than the sum of its proper divisors (585065).

23985943 is an equidigital number, since it uses as much as digits as its factorization.

23985943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585064.

The product of its digits is 233280, while the sum is 43.

The square root of 23985943 is about 4897.5445888731. The cubic root of 23985943 is about 288.3935872235.

The spelling of 23985943 in words is "twenty-three million, nine hundred eighty-five thousand, nine hundred forty-three".