27688036 has 12 divisors (see below), whose sum is σ = 51304428. Its totient is φ = 13029632.

The previous prime is 27688033. The next prime is 27688057. The reversal of 27688036 is 63088672.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20430400 + 7257636 = 4520^2 + 2694^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 27688036.

It is not an unprimeable number, because it can be changed into a prime (27688033) 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 3 ways as a sum of consecutive naturals, for example, 203521 + ... + 203656.

It is an arithmetic number, because the mean of its divisors is an integer number (4275369).

Almost surely, 2^27688036 is an apocalyptic number.

It is an amenable number.

27688036 is a deficient number, since it is larger than the sum of its proper divisors (23616392).

27688036 is a wasteful number, since it uses less digits than its factorization.

27688036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407198 (or 407196 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 27688036 is about 5261.9422269729. The cubic root of 27688036 is about 302.5269370179.

The spelling of 27688036 in words is "twenty-seven million, six hundred eighty-eight thousand, thirty-six".