27682728 has 32 divisors (see below), whose sum is σ = 69336960. Its totient is φ = 9210240.

The previous prime is 27682727. The next prime is 27682751. The reversal of 27682728 is 82728672.

It is a self number, because there is not a number n which added to its sum of digits gives 27682728.

It is not an unprimeable number, because it can be changed into a prime (27682723) 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 7 ways as a sum of consecutive naturals, for example, 21873 + ... + 23103.

It is an arithmetic number, because the mean of its divisors is an integer number (2166780).

Almost surely, 2^27682728 is an apocalyptic number.

It is an amenable number.

27682728 is an abundant number, since it is smaller than the sum of its proper divisors (41654232).

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

27682728 is a wasteful number, since it uses less digits than its factorization.

27682728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2177 (or 2173 counting only the distinct ones).

The product of its digits is 150528, while the sum is 42.

The square root of 27682728 is about 5261.4378262981. The cubic root of 27682728 is about 302.5076035700.

The spelling of 27682728 in words is "twenty-seven million, six hundred eighty-two thousand, seven hundred twenty-eight".