27968065 has 16 divisors (see below), whose sum is σ = 34473600. Its totient is φ = 21774592.

The previous prime is 27968053. The next prime is 27968071. The reversal of 27968065 is 56086972.

It is a cyclic number.

It is not a de Polignac number, because 27968065 - 2⁵ = 27968033 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32916 + ... + 33754.

It is an arithmetic number, because the mean of its divisors is an integer number (2154600).

Almost surely, 2^27968065 is an apocalyptic number.

It is an amenable number.

27968065 is a deficient number, since it is larger than the sum of its proper divisors (6505535).

27968065 is a wasteful number, since it uses less digits than its factorization.

27968065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 27968065 is about 5288.4841873641. The cubic root of 27968065 is about 303.5434086644.

The spelling of 27968065 in words is "twenty-seven million, nine hundred sixty-eight thousand, sixty-five".