9565 has 4 divisors (see below), whose sum is σ = 11484. Its totient is φ = 7648.

The previous prime is 9551. The next prime is 9587. The reversal of 9565 is 5659.

It is a happy number.

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 6084 + 3481 = 78^2 + 59^2 .

It is a cyclic number.

It is not a de Polignac number, because 9565 - 2⁵ = 9533 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13 and base 16.

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, 952 + ... + 961.

It is an arithmetic number, because the mean of its divisors is an integer number (2871).

2⁹⁵⁶⁵ is an apocalyptic number.

It is an amenable number.

9565 is a deficient number, since it is larger than the sum of its proper divisors (1919).

9565 is a wasteful number, since it uses less digits than its factorization.

9565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1918.

The product of its digits is 1350, while the sum is 25.

The square root of 9565 is about 97.8008179925. The cubic root of 9565 is about 21.2273114242.

It can be divided in two parts, 956 and 5, that added together give a square (961 = 31²).

The spelling of 9565 in words is "nine thousand, five hundred sixty-five".