23993871 has 32 divisors (see below), whose sum is σ = 36757248. Its totient is φ = 13789440.

The previous prime is 23993869. The next prime is 23993881. The reversal of 23993871 is 17839932.

It is not a de Polignac number, because 23993871 - 2¹ = 23993869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23993821) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52275 + ... + 52731.

It is an arithmetic number, because the mean of its divisors is an integer number (1148664).

Almost surely, 2^23993871 is an apocalyptic number.

23993871 is a deficient number, since it is larger than the sum of its proper divisors (12763377).

23993871 is a wasteful number, since it uses less digits than its factorization.

23993871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551.

The product of its digits is 81648, while the sum is 42.

The square root of 23993871 is about 4898.3539071815. The cubic root of 23993871 is about 288.4253576721.

The spelling of 23993871 in words is "twenty-three million, nine hundred ninety-three thousand, eight hundred seventy-one".