13885 has 4 divisors (see below), whose sum is σ = 16668. Its totient is φ = 11104.

The previous prime is 13883. The next prime is 13901. The reversal of 13885 is 58831.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3481 + 10404 = 59^2 + 102^2 .

It is a cyclic number.

It is not a de Polignac number, because 13885 - 2¹ = 13883 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1384 + ... + 1393.

It is an arithmetic number, because the mean of its divisors is an integer number (4167).

2¹³⁸⁸⁵ is an apocalyptic number.

It is an amenable number.

13885 is a deficient number, since it is larger than the sum of its proper divisors (2783).

13885 is an equidigital number, since it uses as much as digits as its factorization.

13885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2782.

The product of its digits is 960, while the sum is 25.

The square root of 13885 is about 117.8346298844. The cubic root of 13885 is about 24.0352491297.

It can be divided in two parts, 13 and 885, that added together give a palindrome (898).

The spelling of 13885 in words is "thirteen thousand, eight hundred eighty-five".