27085649 has 2 divisors, whose sum is σ = 27085650. Its totient is φ = 27085648.

The previous prime is 27085627. The next prime is 27085673. The reversal of 27085649 is 94658072.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26337424 + 748225 = 5132^2 + 865^2 .

It is a cyclic number.

It is not a de Polignac number, because 27085649 - 2¹² = 27081553 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (27085609) 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, 13542824 + 13542825.

It is an arithmetic number, because the mean of its divisors is an integer number (13542825).

Almost surely, 2^27085649 is an apocalyptic number.

It is an amenable number.

27085649 is a deficient number, since it is larger than the sum of its proper divisors (1).

27085649 is an equidigital number, since it uses as much as digits as its factorization.

27085649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 27085649 is about 5204.3874759668. The cubic root of 27085649 is about 300.3168836831.

The spelling of 27085649 in words is "twenty-seven million, eighty-five thousand, six hundred forty-nine".