27986312 has 16 divisors (see below), whose sum is σ = 53335500. Its totient is φ = 13763520.

The previous prime is 27986293. The next prime is 27986341. The reversal of 27986312 is 21368972.

It can be written as a sum of positive squares in 2 ways, for example, as 26152996 + 1833316 = 5114^2 + 1354^2 .

It is a super-2 number, since 2×27986312² = 1566467318722688, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28187 + ... + 29162.

Almost surely, 2^27986312 is an apocalyptic number.

It is an amenable number.

27986312 is a deficient number, since it is larger than the sum of its proper divisors (25349188).

27986312 is a wasteful number, since it uses less digits than its factorization.

27986312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57416 (or 57412 counting only the distinct ones).

The product of its digits is 36288, while the sum is 38.

The square root of 27986312 is about 5290.2090695926. The cubic root of 27986312 is about 303.6094071819.

The spelling of 27986312 in words is "twenty-seven million, nine hundred eighty-six thousand, three hundred twelve".