27694157 has 2 divisors, whose sum is σ = 27694158. Its totient is φ = 27694156.

The previous prime is 27694151. The next prime is 27694169. The reversal of 27694157 is 75149672.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25694761 + 1999396 = 5069^2 + 1414^2 .

It is a cyclic number.

It is not a de Polignac number, because 27694157 - 2⁴ = 27694141 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27694151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13847078 + 13847079.

It is an arithmetic number, because the mean of its divisors is an integer number (13847079).

Almost surely, 2^27694157 is an apocalyptic number.

It is an amenable number.

27694157 is a deficient number, since it is larger than the sum of its proper divisors (1).

27694157 is an equidigital number, since it uses as much as digits as its factorization.

27694157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 105840, while the sum is 41.

The square root of 27694157 is about 5262.5238241741. The cubic root of 27694157 is about 302.5492286068.

The spelling of 27694157 in words is "twenty-seven million, six hundred ninety-four thousand, one hundred fifty-seven".