23885 has 8 divisors (see below), whose sum is σ = 30456. Its totient is φ = 17920.

The previous prime is 23879. The next prime is 23887. The reversal of 23885 is 58832.

It can be written as a sum of positive squares in 4 ways, for example, as 6724 + 17161 = 82^2 + 131^2 .

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

It is not a de Polignac number, because 23885 - 2⁴ = 23869 is a prime.

It is a Duffinian number.

It is a plaindrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23887) 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, 56 + ... + 225.

It is an arithmetic number, because the mean of its divisors is an integer number (3807).

2²³⁸⁸⁵ is an apocalyptic number.

It is an amenable number.

23885 is a deficient number, since it is larger than the sum of its proper divisors (6571).

23885 is a wasteful number, since it uses less digits than its factorization.

23885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303.

The product of its digits is 1920, while the sum is 26.

The square root of 23885 is about 154.5477272560. The cubic root of 23885 is about 28.7988457614.

It can be divided in two parts, 238 and 85, that added together give a palindrome (323).

The spelling of 23885 in words is "twenty-three thousand, eight hundred eighty-five".