8864856 has 256 divisors, whose sum is σ = 33868800. Its totient is φ = 2073600.

The previous prime is 8864851. The next prime is 8864879. The reversal of 8864856 is 6584688.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8864851) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 216196 + ... + 216236.

It is an arithmetic number, because the mean of its divisors is an integer number (132300).

Almost surely, 2^8864856 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 8864856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16934400).

8864856 is an abundant number, since it is smaller than the sum of its proper divisors (25003944).

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

8864856 is a wasteful number, since it uses less digits than its factorization.

8864856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87 (or 77 counting only the distinct ones).

The product of its digits is 368640, while the sum is 45.

The square root of 8864856 is about 2977.3908040430. The cubic root of 8864856 is about 206.9619757924.

The spelling of 8864856 in words is "eight million, eight hundred sixty-four thousand, eight hundred fifty-six".