27827 has 2 divisors, whose sum is σ = 27828. Its totient is φ = 27826.

The previous prime is 27823. The next prime is 27847. The reversal of 27827 is 72872.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27827 - 2² = 27823 is a prime.

It is a Chen prime.

It is a nialpdrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 27796 and 27805.

It is not a weakly prime, because it can be changed into another prime (27823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13913 + 13914.

It is an arithmetic number, because the mean of its divisors is an integer number (13914).

2²⁷⁸²⁷ is an apocalyptic number.

27827 is a deficient number, since it is larger than the sum of its proper divisors (1).

27827 is an equidigital number, since it uses as much as digits as its factorization.

27827 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1568, while the sum is 26.

The square root of 27827 is about 166.8142679749. The cubic root of 27827 is about 30.3032212008.

The spelling of 27827 in words is "twenty-seven thousand, eight hundred twenty-seven".