27105317 has 2 divisors, whose sum is σ = 27105318. Its totient is φ = 27105316.

The previous prime is 27105283. The next prime is 27105359. The reversal of 27105317 is 71350172.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24542116 + 2563201 = 4954^2 + 1601^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27105317 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 (27105817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13552658 + 13552659.

It is an arithmetic number, because the mean of its divisors is an integer number (13552659).

Almost surely, 2^27105317 is an apocalyptic number.

It is an amenable number.

27105317 is a deficient number, since it is larger than the sum of its proper divisors (1).

27105317 is an equidigital number, since it uses as much as digits as its factorization.

27105317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1470, while the sum is 26.

The square root of 27105317 is about 5206.2766926086. The cubic root of 27105317 is about 300.3895568954.

Adding to 27105317 its reverse (71350172), we get a palindrome (98455489).

The spelling of 27105317 in words is "twenty-seven million, one hundred five thousand, three hundred seventeen".