27385 has 4 divisors (see below), whose sum is σ = 32868. Its totient is φ = 21904.

The previous prime is 27367. The next prime is 27397. The reversal of 27385 is 58372.

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 21609 + 5776 = 147^2 + 76^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27385 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2734 + ... + 2743.

It is an arithmetic number, because the mean of its divisors is an integer number (8217).

2²⁷³⁸⁵ is an apocalyptic number.

It is an amenable number.

27385 is a deficient number, since it is larger than the sum of its proper divisors (5483).

27385 is an equidigital number, since it uses as much as digits as its factorization.

27385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5482.

The product of its digits is 1680, while the sum is 25.

The square root of 27385 is about 165.4841382127. The cubic root of 27385 is about 30.1419201562.

The spelling of 27385 in words is "twenty-seven thousand, three hundred eighty-five".