28265065 has 16 divisors (see below), whose sum is σ = 36115200. Its totient is φ = 21174912.

The previous prime is 28265057. The next prime is 28265093. The reversal of 28265065 is 56056282.

It is a cyclic number.

It is not a de Polignac number, because 28265065 - 2³ = 28265057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28265065.

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, 6784 + ... + 10126.

It is an arithmetic number, because the mean of its divisors is an integer number (2257200).

Almost surely, 2^28265065 is an apocalyptic number.

It is an amenable number.

28265065 is a deficient number, since it is larger than the sum of its proper divisors (7850135).

28265065 is a wasteful number, since it uses less digits than its factorization.

28265065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3456.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 28265065 is about 5316.4899134673. The cubic root of 28265065 is about 304.6140958302.

The spelling of 28265065 in words is "twenty-eight million, two hundred sixty-five thousand, sixty-five".