23939943 has 8 divisors (see below), whose sum is σ = 33600000. Its totient is φ = 15119928.

The previous prime is 23939921. The next prime is 23939953. The reversal of 23939943 is 34993932.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23939943 - 2⁵ = 23939911 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23939895 and 23939904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23939953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209943 + ... + 210056.

It is an arithmetic number, because the mean of its divisors is an integer number (4200000).

Almost surely, 2^23939943 is an apocalyptic number.

23939943 is a deficient number, since it is larger than the sum of its proper divisors (9660057).

23939943 is a wasteful number, since it uses less digits than its factorization.

23939943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420021.

The product of its digits is 157464, while the sum is 42.

The square root of 23939943 is about 4892.8461042628. The cubic root of 23939943 is about 288.2091098042.

The spelling of 23939943 in words is "twenty-three million, nine hundred thirty-nine thousand, nine hundred forty-three".