27679313 has 2 divisors, whose sum is σ = 27679314. Its totient is φ = 27679312.

The previous prime is 27679297. The next prime is 27679321. The reversal of 27679313 is 31397672.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27636049 + 43264 = 5257^2 + 208^2 .

It is a cyclic number.

It is not a de Polignac number, because 27679313 - 2⁴ = 27679297 is a prime.

It is a super-2 number, since 2×27679313² = 1532288736303938, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (27679913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13839656 + 13839657.

It is an arithmetic number, because the mean of its divisors is an integer number (13839657).

Almost surely, 2^27679313 is an apocalyptic number.

It is an amenable number.

27679313 is a deficient number, since it is larger than the sum of its proper divisors (1).

27679313 is an equidigital number, since it uses as much as digits as its factorization.

27679313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47628, while the sum is 38.

The square root of 27679313 is about 5261.1132852278. The cubic root of 27679313 is about 302.4951637321.

The spelling of 27679313 in words is "twenty-seven million, six hundred seventy-nine thousand, three hundred thirteen".