27648965 has 8 divisors (see below), whose sum is σ = 33988248. Its totient is φ = 21579520.

The previous prime is 27648961. The next prime is 27648979. The reversal of 27648965 is 56984672.

It can be written as a sum of positive squares in 4 ways, for example, as 2401 + 27646564 = 49^2 + 5258^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 27648965 - 2² = 27648961 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27648961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67232 + ... + 67641.

It is an arithmetic number, because the mean of its divisors is an integer number (4248531).

Almost surely, 2^27648965 is an apocalyptic number.

It is an amenable number.

27648965 is a deficient number, since it is larger than the sum of its proper divisors (6339283).

27648965 is a wasteful number, since it uses less digits than its factorization.

27648965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134919.

The product of its digits is 725760, while the sum is 47.

The square root of 27648965 is about 5258.2283137954. The cubic root of 27648965 is about 302.3845699426.

The spelling of 27648965 in words is "twenty-seven million, six hundred forty-eight thousand, nine hundred sixty-five".