9656556 has 96 divisors (see below), whose sum is σ = 28600320. Its totient is φ = 2467584.

The previous prime is 9656551. The next prime is 9656557. The reversal of 9656556 is 6556569.

9656556 is digitally balanced in base 2, base 4 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×9656556² = 186498147562272, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a zygodrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (9656551) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40285 + ... + 40523.

It is an arithmetic number, because the mean of its divisors is an integer number (297920).

Almost surely, 2^9656556 is an apocalyptic number.

It is a pronic number, being equal to 3107×3108.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9656556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14300160).

9656556 is an abundant number, since it is smaller than the sum of its proper divisors (18943764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9656556 is a wasteful number, since it uses less digits than its factorization.

9656556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303 (or 301 counting only the distinct ones).

The product of its digits is 243000, while the sum is 42.

The square root of 9656556 is about 3107.4999597747. The cubic root of 9656556 is about 212.9482560725.

The spelling of 9656556 in words is "nine million, six hundred fifty-six thousand, five hundred fifty-six".