27099 has 6 divisors (see below), whose sum is σ = 39156. Its totient is φ = 18060.

The previous prime is 27091. The next prime is 27103. The reversal of 27099 is 99072.

It is not a de Polignac number, because 27099 - 2³ = 27091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27091) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1497 + ... + 1514.

It is an arithmetic number, because the mean of its divisors is an integer number (6526).

2²⁷⁰⁹⁹ is an apocalyptic number.

27099 is a deficient number, since it is larger than the sum of its proper divisors (12057).

27099 is a wasteful number, since it uses less digits than its factorization.

27099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3017 (or 3014 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 27.

The square root of 27099 is about 164.6177390198. The cubic root of 27099 is about 30.0366219429.

Subtracting from 27099 its sum of digits (27), we obtain a palindrome (27072).

The spelling of 27099 in words is "twenty-seven thousand, ninety-nine".