27968117 has 4 divisors (see below), whose sum is σ = 27991200. Its totient is φ = 27945036.

The previous prime is 27968113. The next prime is 27968119. The reversal of 27968117 is 71186972.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27968117 - 2² = 27968113 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27968113) 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, 9617 + ... + 12182.

It is an arithmetic number, because the mean of its divisors is an integer number (6997800).

Almost surely, 2^27968117 is an apocalyptic number.

It is an amenable number.

27968117 is a deficient number, since it is larger than the sum of its proper divisors (23083).

27968117 is a wasteful number, since it uses less digits than its factorization.

27968117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23082.

The product of its digits is 42336, while the sum is 41.

The square root of 27968117 is about 5288.4891037044. The cubic root of 27968117 is about 303.5435967867.

The spelling of 27968117 in words is "twenty-seven million, nine hundred sixty-eight thousand, one hundred seventeen".