27672871 has 2 divisors, whose sum is σ = 27672872. Its totient is φ = 27672870.

The previous prime is 27672851. The next prime is 27672893. The reversal of 27672871 is 17827672.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27672871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27672851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13836435 + 13836436.

It is an arithmetic number, because the mean of its divisors is an integer number (13836436).

Almost surely, 2^27672871 is an apocalyptic number.

27672871 is a deficient number, since it is larger than the sum of its proper divisors (1).

27672871 is an equidigital number, since it uses as much as digits as its factorization.

27672871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 65856, while the sum is 40.

The square root of 27672871 is about 5260.5010217659. The cubic root of 27672871 is about 302.4716946399.

The spelling of 27672871 in words is "twenty-seven million, six hundred seventy-two thousand, eight hundred seventy-one".