8165585 has 4 divisors (see below), whose sum is σ = 9798708. Its totient is φ = 6532464.

The previous prime is 8165581. The next prime is 8165609. The reversal of 8165585 is 5855618.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5855618 = 2 ⋅2927809.

It can be written as a sum of positive squares in 2 ways, for example, as 3094081 + 5071504 = 1759^2 + 2252^2 .

It is a cyclic number.

It is not a de Polignac number, because 8165585 - 2² = 8165581 is a prime.

It is a super-3 number, since 3×8165585³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8165581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 816554 + ... + 816563.

It is an arithmetic number, because the mean of its divisors is an integer number (2449677).

Almost surely, 2^8165585 is an apocalyptic number.

It is an amenable number.

8165585 is a deficient number, since it is larger than the sum of its proper divisors (1633123).

8165585 is a wasteful number, since it uses less digits than its factorization.

8165585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1633122.

The product of its digits is 48000, while the sum is 38.

The square root of 8165585 is about 2857.5487747368. The cubic root of 8165585 is about 201.3704627101.

The spelling of 8165585 in words is "eight million, one hundred sixty-five thousand, five hundred eighty-five".