28613065 has 16 divisors (see below), whose sum is σ = 37094400. Its totient is φ = 21062592.

The previous prime is 28613063. The next prime is 28613119. The reversal of 28613065 is 56031682.

It is a cyclic number.

It is not a de Polignac number, because 28613065 - 2¹ = 28613063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28613063) by changing a digit.

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, 30676 + ... + 31594.

It is an arithmetic number, because the mean of its divisors is an integer number (2318400).

Almost surely, 2^28613065 is an apocalyptic number.

It is an amenable number.

28613065 is a deficient number, since it is larger than the sum of its proper divisors (8481335).

28613065 is a wasteful number, since it uses less digits than its factorization.

28613065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1416.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 28613065 is about 5349.1181516209. The cubic root of 28613065 is about 305.8591381797.

The spelling of 28613065 in words is "twenty-eight million, six hundred thirteen thousand, sixty-five".