27371987 has 2 divisors, whose sum is σ = 27371988. Its totient is φ = 27371986.

The previous prime is 27371957. The next prime is 27372011. The reversal of 27371987 is 78917372.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27371987 - 2⁶ = 27371923 is a prime.

It is not a weakly prime, because it can be changed into another prime (27371957) by changing a digit.

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

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13685993 + 13685994.

It is an arithmetic number, because the mean of its divisors is an integer number (13685994).

Almost surely, 2^27371987 is an apocalyptic number.

27371987 is a deficient number, since it is larger than the sum of its proper divisors (1).

27371987 is an equidigital number, since it uses as much as digits as its factorization.

27371987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 148176, while the sum is 44.

The square root of 27371987 is about 5231.8244427733. The cubic root of 27371987 is about 301.3714504877.

The spelling of 27371987 in words is "twenty-seven million, three hundred seventy-one thousand, nine hundred eighty-seven".