23839873 has 4 divisors (see below), whose sum is σ = 24195760. Its totient is φ = 23483988.

The previous prime is 23839853. The next prime is 23839957. The reversal of 23839873 is 37893832.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23839873 is a prime.

It is a super-2 number, since 2×23839873² = 1136679089312258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23839853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177843 + ... + 177976.

It is an arithmetic number, because the mean of its divisors is an integer number (6048940).

Almost surely, 2^23839873 is an apocalyptic number.

It is an amenable number.

23839873 is a deficient number, since it is larger than the sum of its proper divisors (355887).

23839873 is an equidigital number, since it uses as much as digits as its factorization.

23839873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355886.

The product of its digits is 217728, while the sum is 43.

The square root of 23839873 is about 4882.6092409694. The cubic root of 23839873 is about 287.8069734407.

The spelling of 23839873 in words is "twenty-three million, eight hundred thirty-nine thousand, eight hundred seventy-three".