23705 has 8 divisors (see below), whose sum is σ = 31104. Its totient is φ = 17200.

The previous prime is 23689. The next prime is 23719. The reversal of 23705 is 50732.

23705 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 23705 - 2⁴ = 23689 is a prime.

It is a Duffinian number.

23705 is strictly pandigital in base 6.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 23705.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161 + ... + 270.

It is an arithmetic number, because the mean of its divisors is an integer number (3888).

2²³⁷⁰⁵ is an apocalyptic number.

It is an amenable number.

23705 is a deficient number, since it is larger than the sum of its proper divisors (7399).

23705 is a wasteful number, since it uses less digits than its factorization.

23705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447.

The product of its (nonzero) digits is 210, while the sum is 17.

The square root of 23705 is about 153.9642815721. The cubic root of 23705 is about 28.7263195049.

The spelling of 23705 in words is "twenty-three thousand, seven hundred five".