27641017 has 2 divisors, whose sum is σ = 27641018. Its totient is φ = 27641016.

The previous prime is 27640993. The next prime is 27641063. The reversal of 27641017 is 71014672.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14017536 + 13623481 = 3744^2 + 3691^2 .

It is a cyclic number.

It is not a de Polignac number, because 27641017 - 2¹⁹ = 27116729 is a prime.

It is not a weakly prime, because it can be changed into another prime (27641617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13820508 + 13820509.

It is an arithmetic number, because the mean of its divisors is an integer number (13820509).

Almost surely, 2^27641017 is an apocalyptic number.

It is an amenable number.

27641017 is a deficient number, since it is larger than the sum of its proper divisors (1).

27641017 is an equidigital number, since it uses as much as digits as its factorization.

27641017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 27641017 is about 5257.4724916066. The cubic root of 27641017 is about 302.3555925723.

Adding to 27641017 its reverse (71014672), we get a palindrome (98655689).

The spelling of 27641017 in words is "twenty-seven million, six hundred forty-one thousand, seventeen".