27516317 has 2 divisors, whose sum is σ = 27516318. Its totient is φ = 27516316.

The previous prime is 27516241. The next prime is 27516323. The reversal of 27516317 is 71361572.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24344356 + 3171961 = 4934^2 + 1781^2 .

It is a cyclic number.

It is not a de Polignac number, because 27516317 - 2¹⁸ = 27254173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27516337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13758158 + 13758159.

It is an arithmetic number, because the mean of its divisors is an integer number (13758159).

Almost surely, 2^27516317 is an apocalyptic number.

It is an amenable number.

27516317 is a deficient number, since it is larger than the sum of its proper divisors (1).

27516317 is an equidigital number, since it uses as much as digits as its factorization.

27516317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8820, while the sum is 32.

The square root of 27516317 is about 5245.5997750496. The cubic root of 27516317 is about 301.9002236067.

Adding to 27516317 its reverse (71361572), we get a palindrome (98877889).

The spelling of 27516317 in words is "twenty-seven million, five hundred sixteen thousand, three hundred seventeen".