27065 has 4 divisors (see below), whose sum is σ = 32484. Its totient is φ = 21648.

The previous prime is 27061. The next prime is 27067. The reversal of 27065 is 56072.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7744 + 19321 = 88^2 + 139^2 .

It is a cyclic number.

It is not a de Polignac number, because 27065 - 2² = 27061 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2702 + ... + 2711.

It is an arithmetic number, because the mean of its divisors is an integer number (8121).

2²⁷⁰⁶⁵ is an apocalyptic number.

It is an amenable number.

27065 is a deficient number, since it is larger than the sum of its proper divisors (5419).

27065 is an equidigital number, since it uses as much as digits as its factorization.

27065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5418.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 27065 is about 164.5144370564. The cubic root of 27065 is about 30.0240547812.

It can be divided in two parts, 2706 and 5, that multiplied together give a triangular number (13530 = T₁₆₄).

The spelling of 27065 in words is "twenty-seven thousand, sixty-five".