27655841 has 2 divisors, whose sum is σ = 27655842. Its totient is φ = 27655840.

The previous prime is 27655829. The next prime is 27655843. The reversal of 27655841 is 14855672.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27300625 + 355216 = 5225^2 + 596^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27655841 is a prime.

Together with 27655843, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 27655795 and 27655804.

It is not a weakly prime, because it can be changed into another prime (27655843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13827920 + 13827921.

It is an arithmetic number, because the mean of its divisors is an integer number (13827921).

Almost surely, 2^27655841 is an apocalyptic number.

It is an amenable number.

27655841 is a deficient number, since it is larger than the sum of its proper divisors (1).

27655841 is an equidigital number, since it uses as much as digits as its factorization.

27655841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 67200, while the sum is 38.

The square root of 27655841 is about 5258.8821055430. The cubic root of 27655841 is about 302.4096344609.

The spelling of 27655841 in words is "twenty-seven million, six hundred fifty-five thousand, eight hundred forty-one".