27853289 has 2 divisors, whose sum is σ = 27853290. Its totient is φ = 27853288.

The previous prime is 27853279. The next prime is 27853313. The reversal of 27853289 is 98235872.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25836889 + 2016400 = 5083^2 + 1420^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27853289 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (27853279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13926644 + 13926645.

It is an arithmetic number, because the mean of its divisors is an integer number (13926645).

Almost surely, 2^27853289 is an apocalyptic number.

It is an amenable number.

27853289 is a deficient number, since it is larger than the sum of its proper divisors (1).

27853289 is an equidigital number, since it uses as much as digits as its factorization.

27853289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 44.

The square root of 27853289 is about 5277.6215286813. The cubic root of 27853289 is about 303.1276098404.

The spelling of 27853289 in words is "twenty-seven million, eight hundred fifty-three thousand, two hundred eighty-nine".