23923869 has 32 divisors (see below), whose sum is σ = 35683200. Its totient is φ = 14192640.

The previous prime is 23923853. The next prime is 23923871. The reversal of 23923869 is 96832932.

It is not a de Polignac number, because 23923869 - 2⁴ = 23923853 is a prime.

It is a super-2 number, since 2×23923869² = 1144703015858322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23923869.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23923819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67597 + ... + 67949.

It is an arithmetic number, because the mean of its divisors is an integer number (1115100).

Almost surely, 2^23923869 is an apocalyptic number.

23923869 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

23923869 is a deficient number, since it is larger than the sum of its proper divisors (11759331).

23923869 is a wasteful number, since it uses less digits than its factorization.

23923869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445.

The product of its digits is 139968, while the sum is 42.

The square root of 23923869 is about 4891.2032262011. The cubic root of 23923869 is about 288.1445912650.

The spelling of 23923869 in words is "twenty-three million, nine hundred twenty-three thousand, eight hundred sixty-nine".