27868065 has 16 divisors (see below), whose sum is σ = 46528128. Its totient is φ = 14216576.

The previous prime is 27868037. The next prime is 27868073. The reversal of 27868065 is 56086872.

It is not a de Polignac number, because 27868065 - 2¹⁰ = 27867041 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 40044 + ... + 40733.

It is an arithmetic number, because the mean of its divisors is an integer number (2908008).

Almost surely, 2^27868065 is an apocalyptic number.

It is an amenable number.

27868065 is a deficient number, since it is larger than the sum of its proper divisors (18660063).

27868065 is a wasteful number, since it uses less digits than its factorization.

27868065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80808.

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 27868065 is about 5279.0212160968. The cubic root of 27868065 is about 303.1812028143.

The spelling of 27868065 in words is "twenty-seven million, eight hundred sixty-eight thousand, sixty-five".