9936565 has 4 divisors (see below), whose sum is σ = 11923884. Its totient is φ = 7949248.

The previous prime is 9936557. The next prime is 9936571. The reversal of 9936565 is 5656399.

It is a happy number.

9936565 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 4765489 + 5171076 = 2183^2 + 2274^2 .

It is a cyclic number.

It is not a de Polignac number, because 9936565 - 2³ = 9936557 is a prime.

It is a Duffinian number.

9936565 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 993652 + ... + 993661.

It is an arithmetic number, because the mean of its divisors is an integer number (2980971).

Almost surely, 2^9936565 is an apocalyptic number.

It is an amenable number.

9936565 is a deficient number, since it is larger than the sum of its proper divisors (1987319).

9936565 is a wasteful number, since it uses less digits than its factorization.

9936565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1987318.

The product of its digits is 218700, while the sum is 43.

The square root of 9936565 is about 3152.2317490946. The cubic root of 9936565 is about 214.9869471073.

It can be divided in two parts, 9936 and 565, that added together give a palindrome (10501).

The spelling of 9936565 in words is "nine million, nine hundred thirty-six thousand, five hundred sixty-five".