23999957 has 8 divisors (see below), whose sum is σ = 24379584. Its totient is φ = 23623488.

The previous prime is 23999951. The next prime is 23999981. The reversal of 23999957 is 75999932.

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

It is a cyclic number.

It is not a de Polignac number, because 23999957 - 2⁶ = 23999893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23999899 and 23999908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23999951) 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, 17768 + ... + 19070.

It is an arithmetic number, because the mean of its divisors is an integer number (3047448).

Almost surely, 2^23999957 is an apocalyptic number.

It is an amenable number.

23999957 is a deficient number, since it is larger than the sum of its proper divisors (379627).

23999957 is a wasteful number, since it uses less digits than its factorization.

23999957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1579.

The product of its digits is 1377810, while the sum is 53.

The square root of 23999957 is about 4898.9750968953. The cubic root of 23999957 is about 288.4497417927.

The spelling of 23999957 in words is "twenty-three million, nine hundred ninety-nine thousand, nine hundred fifty-seven".