27873 has 12 divisors (see below), whose sum is σ = 42640. Its totient is φ = 17496.

The previous prime is 27851. The next prime is 27883. The reversal of 27873 is 37872.

27873 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 27873 - 2⁶ = 27809 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (27803) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90 + ... + 252.

2²⁷⁸⁷³ is an apocalyptic number.

It is an amenable number.

27873 is a deficient number, since it is larger than the sum of its proper divisors (14767).

27873 is a wasteful number, since it uses less digits than its factorization.

27873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188 (or 185 counting only the distinct ones).

The product of its digits is 2352, while the sum is 27.

The square root of 27873 is about 166.9520889357. The cubic root of 27873 is about 30.3199097980.

Subtracting 27873 from its reverse (37872), we obtain a palindrome (9999).

It can be divided in two parts, 278 and 73, that added together give a triangular number (351 = T₂₆).

The spelling of 27873 in words is "twenty-seven thousand, eight hundred seventy-three".