27774 has 12 divisors (see below), whose sum is σ = 60216. Its totient is φ = 9252.

The previous prime is 27773. The next prime is 27779. The reversal of 27774 is 47772.

It is a happy number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 27774.

It is not an unprimeable number, because it can be changed into a prime (27773) 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, 754 + ... + 789.

It is an arithmetic number, because the mean of its divisors is an integer number (5018).

2²⁷⁷⁷⁴ is an apocalyptic number.

27774 is an abundant number, since it is smaller than the sum of its proper divisors (32442).

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

27774 is a wasteful number, since it uses less digits than its factorization.

27774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1551 (or 1548 counting only the distinct ones).

The product of its digits is 2744, while the sum is 27.

The square root of 27774 is about 166.6553329480. The cubic root of 27774 is about 30.2839702161.

It can be divided in two parts, 277 and 74, that added together give a triangular number (351 = T₂₆).

The spelling of 27774 in words is "twenty-seven thousand, seven hundred seventy-four", and thus it is an iban number.