27320617 has 2 divisors, whose sum is σ = 27320618. Its totient is φ = 27320616.

The previous prime is 27320611. The next prime is 27320627. The reversal of 27320617 is 71602372.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18224361 + 9096256 = 4269^2 + 3016^2 .

It is a cyclic number.

It is not a de Polignac number, because 27320617 - 2¹¹ = 27318569 is a prime.

It is a super-2 number, since 2×27320617² = 1492832226521378, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27320611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13660308 + 13660309.

It is an arithmetic number, because the mean of its divisors is an integer number (13660309).

Almost surely, 2^27320617 is an apocalyptic number.

It is an amenable number.

27320617 is a deficient number, since it is larger than the sum of its proper divisors (1).

27320617 is an equidigital number, since it uses as much as digits as its factorization.

27320617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 27320617 is about 5226.9127599377. The cubic root of 27320617 is about 301.1828008488.

Adding to 27320617 its reverse (71602372), we get a palindrome (98922989).

The spelling of 27320617 in words is "twenty-seven million, three hundred twenty thousand, six hundred seventeen".