9544 has 8 divisors (see below), whose sum is σ = 17910. Its totient is φ = 4768.

The previous prime is 9539. The next prime is 9547. The reversal of 9544 is 4459.

It can be written as a sum of positive squares in only one way, i.e., 8100 + 1444 = 90^2 + 38^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a plaindrome in base 14.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (9547) by changing a digit.

9544 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 589 + ... + 604.

2⁹⁵⁴⁴ is an apocalyptic number.

It is an amenable number.

9544 is a deficient number, since it is larger than the sum of its proper divisors (8366).

9544 is a wasteful number, since it uses less digits than its factorization.

9544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1199 (or 1195 counting only the distinct ones).

The product of its digits is 720, while the sum is 22.

The square root of 9544 is about 97.6933979346. The cubic root of 9544 is about 21.2117651558.

The spelling of 9544 in words is "nine thousand, five hundred forty-four".