8885556 has 36 divisors (see below), whose sum is σ = 22889412. Its totient is φ = 2905344.

The previous prime is 8885551. The next prime is 8885557. The reversal of 8885556 is 6555888.

It can be written as a sum of positive squares in 2 ways, for example, as 3549456 + 5336100 = 1884^2 + 2310^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8885551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 421 + ... + 4236.

It is an arithmetic number, because the mean of its divisors is an integer number (635817).

Almost surely, 2^8885556 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8885556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11444706).

8885556 is an abundant number, since it is smaller than the sum of its proper divisors (14003856).

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

8885556 is a wasteful number, since it uses less digits than its factorization.

8885556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4720 (or 4715 counting only the distinct ones).

The product of its digits is 384000, while the sum is 45.

The square root of 8885556 is about 2980.8649751373. The cubic root of 8885556 is about 207.1229403420.

The spelling of 8885556 in words is "eight million, eight hundred eighty-five thousand, five hundred fifty-six".