9563 has 4 divisors (see below), whose sum is σ = 9768. Its totient is φ = 9360.

The previous prime is 9551. The next prime is 9587. The reversal of 9563 is 3659.

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

It is a cyclic number.

It is not a de Polignac number, because 9563 - 2⁴ = 9547 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13 and base 16.

It is not an unprimeable number, because it can be changed into a prime (9533) 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, 8 + ... + 138.

It is an arithmetic number, because the mean of its divisors is an integer number (2442).

2⁹⁵⁶³ is an apocalyptic number.

9563 is a deficient number, since it is larger than the sum of its proper divisors (205).

9563 is a wasteful number, since it uses less digits than its factorization.

9563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204.

The product of its digits is 810, while the sum is 23.

The square root of 9563 is about 97.7905925946. The cubic root of 9563 is about 21.2258318082.

It can be divided in two parts, 956 and 3, that added together give a palindrome (959).

The spelling of 9563 in words is "nine thousand, five hundred sixty-three".