27161593 has 2 divisors, whose sum is σ = 27161594. Its totient is φ = 27161592.

The previous prime is 27161591. The next prime is 27161669. The reversal of 27161593 is 39516172.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14115049 + 13046544 = 3757^2 + 3612^2 .

It is a cyclic number.

It is not a de Polignac number, because 27161593 - 2¹ = 27161591 is a prime.

Together with 27161591, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (27161591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13580796 + 13580797.

It is an arithmetic number, because the mean of its divisors is an integer number (13580797).

Almost surely, 2^27161593 is an apocalyptic number.

It is an amenable number.

27161593 is a deficient number, since it is larger than the sum of its proper divisors (1).

27161593 is an equidigital number, since it uses as much as digits as its factorization.

27161593 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11340, while the sum is 34.

The square root of 27161593 is about 5211.6785204001. The cubic root of 27161593 is about 300.5973025688.

The spelling of 27161593 in words is "twenty-seven million, one hundred sixty-one thousand, five hundred ninety-three".