27686029 has 12 divisors (see below), whose sum is σ = 32994108. Its totient is φ = 23150400.

The previous prime is 27685993. The next prime is 27686041. The reversal of 27686029 is 92068672.

It can be written as a sum of positive squares in 2 ways, for example, as 7300804 + 20385225 = 2702^2 + 4515^2 .

It is a de Polignac number, because none of the positive numbers 2^k-27686029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27685982 and 27686000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27686129) 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, 4882 + ... + 8899.

It is an arithmetic number, because the mean of its divisors is an integer number (2749509).

Almost surely, 2^27686029 is an apocalyptic number.

It is an amenable number.

27686029 is a deficient number, since it is larger than the sum of its proper divisors (5308079).

27686029 is a wasteful number, since it uses less digits than its factorization.

27686029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13836 (or 13829 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 27686029 is about 5261.7515144674. The cubic root of 27686029 is about 302.5196271672.

The spelling of 27686029 in words is "twenty-seven million, six hundred eighty-six thousand, twenty-nine".