9556 has 6 divisors (see below), whose sum is σ = 16730. Its totient is φ = 4776.

The previous prime is 9551. The next prime is 9587. The reversal of 9556 is 6559.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7056 + 2500 = 84^2 + 50^2 .

It is a nialpdrome in base 4.

It is a self number, because there is not a number n which added to its sum of digits gives 9556.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9551) by changing a digit.

9556 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1191 + ... + 1198.

2⁹⁵⁵⁶ is an apocalyptic number.

It is an amenable number.

9556 is a deficient number, since it is larger than the sum of its proper divisors (7174).

9556 is a wasteful number, since it uses less digits than its factorization.

9556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2393 (or 2391 counting only the distinct ones).

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

The square root of 9556 is about 97.7547952788. The cubic root of 9556 is about 21.2206515269.

It can be divided in two parts, 955 and 6, that added together give a square (961 = 31²).

The spelling of 9556 in words is "nine thousand, five hundred fifty-six".