27961883 has 2 divisors, whose sum is σ = 27961884. Its totient is φ = 27961882.

The previous prime is 27961853. The next prime is 27961891. The reversal of 27961883 is 38816972.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27961883 - 2⁸ = 27961627 is a prime.

It is not a weakly prime, because it can be changed into another prime (27961853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13980941 + 13980942.

It is an arithmetic number, because the mean of its divisors is an integer number (13980942).

Almost surely, 2^27961883 is an apocalyptic number.

27961883 is a deficient number, since it is larger than the sum of its proper divisors (1).

27961883 is an equidigital number, since it uses as much as digits as its factorization.

27961883 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 44.

The square root of 27961883 is about 5287.8996775658. The cubic root of 27961883 is about 303.5210421591.

The spelling of 27961883 in words is "twenty-seven million, nine hundred sixty-one thousand, eight hundred eighty-three".