8509065 has 16 divisors (see below), whose sum is σ = 13661568. Its totient is φ = 4522496.

The previous prime is 8509063. The next prime is 8509069. The reversal of 8509065 is 5609058.

It is a cyclic number.

It is not a de Polignac number, because 8509065 - 2¹ = 8509063 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

8509065 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8509063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4492 + ... + 6098.

It is an arithmetic number, because the mean of its divisors is an integer number (853848).

Almost surely, 2^8509065 is an apocalyptic number.

It is an amenable number.

8509065 is a deficient number, since it is larger than the sum of its proper divisors (5152503).

8509065 is a wasteful number, since it uses less digits than its factorization.

8509065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1968.

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 8509065 is about 2917.0301678248. The cubic root of 8509065 is about 204.1552787392.

The spelling of 8509065 in words is "eight million, five hundred nine thousand, sixty-five".