9165665 has 16 divisors (see below), whose sum is σ = 11404800. Its totient is φ = 7066752.

The previous prime is 9165647. The next prime is 9165679. The reversal of 9165665 is 5665619.

It is a cyclic number.

It is not a de Polignac number, because 9165665 - 2¹⁶ = 9100129 is a prime.

It is a Curzon number.

It is an unprimeable number.

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, 18896 + ... + 19374.

It is an arithmetic number, because the mean of its divisors is an integer number (712800).

Almost surely, 2^9165665 is an apocalyptic number.

It is an amenable number.

9165665 is a deficient number, since it is larger than the sum of its proper divisors (2239135).

9165665 is a wasteful number, since it uses less digits than its factorization.

9165665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616.

The product of its digits is 48600, while the sum is 38.

The square root of 9165665 is about 3027.4849297726. The cubic root of 9165665 is about 209.2769159655.

It can be divided in two parts, 91 and 65665, that added together give a palindrome (65756).

The spelling of 9165665 in words is "nine million, one hundred sixty-five thousand, six hundred sixty-five".