27038965 has 4 divisors (see below), whose sum is σ = 32446764. Its totient is φ = 21631168.

The previous prime is 27038953. The next prime is 27038969. The reversal of 27038965 is 56983072.

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 3912484 + 23126481 = 1978^2 + 4809^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27038965 is a prime.

It is a super-2 number, since 2×27038965² = 1462211256542450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27038969) 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, 2703892 + ... + 2703901.

It is an arithmetic number, because the mean of its divisors is an integer number (8111691).

Almost surely, 2^27038965 is an apocalyptic number.

It is an amenable number.

27038965 is a deficient number, since it is larger than the sum of its proper divisors (5407799).

27038965 is an equidigital number, since it uses as much as digits as its factorization.

27038965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5407798.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 27038965 is about 5199.9004798169. The cubic root of 27038965 is about 300.1442454479.

The spelling of 27038965 in words is "twenty-seven million, thirty-eight thousand, nine hundred sixty-five".