27640086 has 16 divisors (see below), whose sum is σ = 55339200. Its totient is φ = 9203528.

The previous prime is 27640057. The next prime is 27640141. The reversal of 27640086 is 68004672.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 5725 + ... + 9383.

It is an arithmetic number, because the mean of its divisors is an integer number (3458700).

Almost surely, 2^27640086 is an apocalyptic number.

27640086 is an abundant number, since it is smaller than the sum of its proper divisors (27699114).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27640086 is a wasteful number, since it uses less digits than its factorization.

27640086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4923.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 27640086 is about 5257.3839502171. The cubic root of 27640086 is about 302.3521979044.

The spelling of 27640086 in words is "twenty-seven million, six hundred forty thousand, eighty-six".