9889556 has 6 divisors (see below), whose sum is σ = 17306730. Its totient is φ = 4944776.

The previous prime is 9889553. The next prime is 9889559. The reversal of 9889556 is 6559889.

It is a happy number.

9889556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (9889553) and next prime (9889559).

It can be written as a sum of positive squares in only one way, i.e., 9821956 + 67600 = 3134^2 + 260^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9889553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1236191 + ... + 1236198.

It is an arithmetic number, because the mean of its divisors is an integer number (2884455).

Almost surely, 2^9889556 is an apocalyptic number.

It is an amenable number.

9889556 is a deficient number, since it is larger than the sum of its proper divisors (7417174).

9889556 is a wasteful number, since it uses less digits than its factorization.

9889556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2472393 (or 2472391 counting only the distinct ones).

The product of its digits is 777600, while the sum is 50.

The square root of 9889556 is about 3144.7664460179. The cubic root of 9889556 is about 214.6473830566.

The spelling of 9889556 in words is "nine million, eight hundred eighty-nine thousand, five hundred fifty-six".