27986103 has 12 divisors (see below), whose sum is σ = 41285088. Its totient is φ = 18260160.

The previous prime is 27986099. The next prime is 27986111. The reversal of 27986103 is 30168972.

It is not a de Polignac number, because 27986103 - 2² = 27986099 is a prime.

It is a super-2 number, since 2×27986103² = 1566443922253218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27986143) 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 in 11 ways as a sum of consecutive naturals, for example, 32658 + ... + 33503.

It is an arithmetic number, because the mean of its divisors is an integer number (3440424).

Almost surely, 2^27986103 is an apocalyptic number.

27986103 is a deficient number, since it is larger than the sum of its proper divisors (13298985).

27986103 is a wasteful number, since it uses less digits than its factorization.

27986103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66214 (or 66211 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 27986103 is about 5290.1893160831. The cubic root of 27986103 is about 303.6086514014.

The spelling of 27986103 in words is "twenty-seven million, nine hundred eighty-six thousand, one hundred three".