23718 has 16 divisors (see below), whose sum is σ = 48960. Its totient is φ = 7656.

The previous prime is 23689. The next prime is 23719. The reversal of 23718 is 81732.

It is a junction number, because it is equal to n+sod(n) for n = 23694 and 23703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23719) 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, 321 + ... + 387.

It is an arithmetic number, because the mean of its divisors is an integer number (3060).

2²³⁷¹⁸ is an apocalyptic number.

23718 is an abundant number, since it is smaller than the sum of its proper divisors (25242).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24480).

23718 is a wasteful number, since it uses less digits than its factorization.

23718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131.

The product of its digits is 336, while the sum is 21.

The square root of 23718 is about 154.0064933696. The cubic root of 23718 is about 28.7315697883.

It can be divided in two parts, 23 and 718, that added together give a triangular number (741 = T₃₈).

The spelling of 23718 in words is "twenty-three thousand, seven hundred eighteen".