27690167 has 2 divisors, whose sum is σ = 27690168. Its totient is φ = 27690166.

The previous prime is 27690149. The next prime is 27690193. The reversal of 27690167 is 76109672.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27690167 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 27690167.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27690107) 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 as a sum of consecutive naturals, namely, 13845083 + 13845084.

It is an arithmetic number, because the mean of its divisors is an integer number (13845084).

Almost surely, 2^27690167 is an apocalyptic number.

27690167 is a deficient number, since it is larger than the sum of its proper divisors (1).

27690167 is an equidigital number, since it uses as much as digits as its factorization.

27690167 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 27690167 is about 5262.1447148477. The cubic root of 27690167 is about 302.5346981121.

The spelling of 27690167 in words is "twenty-seven million, six hundred ninety thousand, one hundred sixty-seven".