27682818 has 8 divisors (see below), whose sum is σ = 55365648. Its totient is φ = 9227604.

The previous prime is 27682813. The next prime is 27682819. The reversal of 27682818 is 81828672.

It is a sphenic number, since it is the product of 3 distinct primes.

27682818 is an admirable number.

It is a super-2 number, since 2×27682818² = 1532676824842248, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 27682818.

It is not an unprimeable number, because it can be changed into a prime (27682813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2306896 + ... + 2306907.

It is an arithmetic number, because the mean of its divisors is an integer number (6920706).

Almost surely, 2^27682818 is an apocalyptic number.

27682818 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

27682818 is a wasteful number, since it uses less digits than its factorization.

27682818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4613808.

The product of its digits is 86016, while the sum is 42.

The square root of 27682818 is about 5261.4463790863. The cubic root of 27682818 is about 302.5079313996.

The spelling of 27682818 in words is "twenty-seven million, six hundred eighty-two thousand, eight hundred eighteen".