27873871 has 2 divisors, whose sum is σ = 27873872. Its totient is φ = 27873870.

The previous prime is 27873869. The next prime is 27873947. The reversal of 27873871 is 17837872.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27873871 - 2¹ = 27873869 is a prime.

Together with 27873869, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27873851) 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, 13936935 + 13936936.

It is an arithmetic number, because the mean of its divisors is an integer number (13936936).

Almost surely, 2^27873871 is an apocalyptic number.

27873871 is a deficient number, since it is larger than the sum of its proper divisors (1).

27873871 is an equidigital number, since it uses as much as digits as its factorization.

27873871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 131712, while the sum is 43.

The square root of 27873871 is about 5279.5711000042. The cubic root of 27873871 is about 303.2022561577.

The spelling of 27873871 in words is "twenty-seven million, eight hundred seventy-three thousand, eight hundred seventy-one".