27660087 has 24 divisors (see below), whose sum is σ = 49174944. Its totient is φ = 14589504.

The previous prime is 27660019. The next prime is 27660097. The reversal of 27660087 is 78006672.

It is not a de Polignac number, because 27660087 - 2¹⁰ = 27659063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27660097) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16068 + ... + 17705.

It is an arithmetic number, because the mean of its divisors is an integer number (2048956).

Almost surely, 2^27660087 is an apocalyptic number.

27660087 is a deficient number, since it is larger than the sum of its proper divisors (21514857).

27660087 is a wasteful number, since it uses less digits than its factorization.

27660087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33799 (or 33796 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 27660087 is about 5259.2857880134. The cubic root of 27660087 is about 302.4251099814.

The spelling of 27660087 in words is "twenty-seven million, six hundred sixty thousand, eighty-seven".