27799 has 2 divisors, whose sum is σ = 27800. Its totient is φ = 27798.

The previous prime is 27793. The next prime is 27803. The reversal of 27799 is 99772.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27799 - 2³ = 27791 is a prime.

It is a plaindrome in base 10.

It is a nialpdrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13899 + 13900.

It is an arithmetic number, because the mean of its divisors is an integer number (13900).

2²⁷⁷⁹⁹ is an apocalyptic number.

27799 is a deficient number, since it is larger than the sum of its proper divisors (1).

27799 is an equidigital number, since it uses as much as digits as its factorization.

27799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7938, while the sum is 34.

The square root of 27799 is about 166.7303211776. The cubic root of 27799 is about 30.2930539179.

The spelling of 27799 in words is "twenty-seven thousand, seven hundred ninety-nine".