8506165 has 4 divisors (see below), whose sum is σ = 10207404. Its totient is φ = 6804928.

The previous prime is 8506163. The next prime is 8506181. The reversal of 8506165 is 5616058.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1962801 + 6543364 = 1401^2 + 2558^2 .

It is a cyclic number.

It is not a de Polignac number, because 8506165 - 2¹ = 8506163 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8506163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 850612 + ... + 850621.

It is an arithmetic number, because the mean of its divisors is an integer number (2551851).

Almost surely, 2^8506165 is an apocalyptic number.

It is an amenable number.

8506165 is a deficient number, since it is larger than the sum of its proper divisors (1701239).

8506165 is a wasteful number, since it uses less digits than its factorization.

8506165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1701238.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 8506165 is about 2916.5330445582. The cubic root of 8506165 is about 204.1320831793.

The spelling of 8506165 in words is "eight million, five hundred six thousand, one hundred sixty-five".