27006517 has 2 divisors, whose sum is σ = 27006518. Its totient is φ = 27006516.

The previous prime is 27006509. The next prime is 27006527. The reversal of 27006517 is 71560072.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14432401 + 12574116 = 3799^2 + 3546^2 .

It is a cyclic number.

It is not a de Polignac number, because 27006517 - 2³ = 27006509 is a prime.

It is equal to p_1683460 and since 27006517 and 1683460 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27006527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13503258 + 13503259.

It is an arithmetic number, because the mean of its divisors is an integer number (13503259).

Almost surely, 2^27006517 is an apocalyptic number.

It is an amenable number.

27006517 is a deficient number, since it is larger than the sum of its proper divisors (1).

27006517 is an equidigital number, since it uses as much as digits as its factorization.

27006517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 27006517 is about 5196.7794834878. The cubic root of 27006517 is about 300.0241350953.

Adding to 27006517 its reverse (71560072), we get a palindrome (98566589).

The spelling of 27006517 in words is "twenty-seven million, six thousand, five hundred seventeen".