27261317 has 2 divisors, whose sum is σ = 27261318. Its totient is φ = 27261316.

The previous prime is 27261301. The next prime is 27261331. The reversal of 27261317 is 71316272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24542116 + 2719201 = 4954^2 + 1649^2 .

It is a cyclic number.

It is not a de Polignac number, because 27261317 - 2⁴ = 27261301 is a prime.

It is a super-4 number, since 4×27261317⁴ (a number of 31 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 27261317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27261337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13630658 + 13630659.

It is an arithmetic number, because the mean of its divisors is an integer number (13630659).

Almost surely, 2^27261317 is an apocalyptic number.

It is an amenable number.

27261317 is a deficient number, since it is larger than the sum of its proper divisors (1).

27261317 is an equidigital number, since it uses as much as digits as its factorization.

27261317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3528, while the sum is 29.

The square root of 27261317 is about 5221.2371139415. The cubic root of 27261317 is about 300.9647350362.

Adding to 27261317 its reverse (71316272), we get a palindrome (98577589).

The spelling of 27261317 in words is "twenty-seven million, two hundred sixty-one thousand, three hundred seventeen".