27694169 has 2 divisors, whose sum is σ = 27694170. Its totient is φ = 27694168.

The previous prime is 27694157. The next prime is 27694171. The reversal of 27694169 is 96149672.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27667600 + 26569 = 5260^2 + 163^2 .

It is a cyclic number.

It is not a de Polignac number, because 27694169 - 2¹² = 27690073 is a prime.

It is a super-2 number, since 2×27694169² = 1533933993201122, which contains 22 as substring.

Together with 27694171, it forms a pair of twin primes.

It is a Chen prime.

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

It is not a weakly prime, because it can be changed into another prime (27694109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13847084 + 13847085.

It is an arithmetic number, because the mean of its divisors is an integer number (13847085).

Almost surely, 2^27694169 is an apocalyptic number.

It is an amenable number.

27694169 is a deficient number, since it is larger than the sum of its proper divisors (1).

27694169 is an equidigital number, since it uses as much as digits as its factorization.

27694169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 44.

The square root of 27694169 is about 5262.5249643113. The cubic root of 27694169 is about 302.5492723054.

The spelling of 27694169 in words is "twenty-seven million, six hundred ninety-four thousand, one hundred sixty-nine".