27912 has 16 divisors (see below), whose sum is σ = 69840. Its totient is φ = 9296.

The previous prime is 27901. The next prime is 27917. The reversal of 27912 is 21972.

It is a happy number.

It is a nialpdrome in base 8 and base 13.

It is not an unprimeable number, because it can be changed into a prime (27917) by changing a digit.

27912 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 558 + ... + 605.

It is an arithmetic number, because the mean of its divisors is an integer number (4365).

2²⁷⁹¹² is an apocalyptic number.

It is an amenable number.

27912 is an abundant number, since it is smaller than the sum of its proper divisors (41928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34920).

27912 is a wasteful number, since it uses less digits than its factorization.

27912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1172 (or 1168 counting only the distinct ones).

The product of its digits is 252, while the sum is 21.

The square root of 27912 is about 167.0688480837. The cubic root of 27912 is about 30.3340444492.

It can be divided in two parts, 27 and 912, that added together give a palindrome (939).

The spelling of 27912 in words is "twenty-seven thousand, nine hundred twelve".