27072317 has 2 divisors, whose sum is σ = 27072318. Its totient is φ = 27072316.

The previous prime is 27072307. The next prime is 27072319. The reversal of 27072317 is 71327072.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18156121 + 8916196 = 4261^2 + 2986^2 .

It is a cyclic number.

It is not a de Polignac number, because 27072317 - 2⁴ = 27072301 is a prime.

Together with 27072319, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27072317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27072319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13536158 + 13536159.

It is an arithmetic number, because the mean of its divisors is an integer number (13536159).

Almost surely, 2^27072317 is an apocalyptic number.

It is an amenable number.

27072317 is a deficient number, since it is larger than the sum of its proper divisors (1).

27072317 is an equidigital number, since it uses as much as digits as its factorization.

27072317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4116, while the sum is 29.

The square root of 27072317 is about 5203.1064759430. The cubic root of 27072317 is about 300.2676019671.

Adding to 27072317 its reverse (71327072), we get a palindrome (98399389).

The spelling of 27072317 in words is "twenty-seven million, seventy-two thousand, three hundred seventeen".