8856864 has 144 divisors (see below), whose sum is σ = 28068768. Its totient is φ = 2737152.

The previous prime is 8856833. The next prime is 8856877. The reversal of 8856864 is 4686588.

8856864 is a `hidden beast` number, since 88 + 568 + 6 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 132159 + ... + 132225.

It is an arithmetic number, because the mean of its divisors is an integer number (194922).

Almost surely, 2^8856864 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 8856864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14034384).

8856864 is an abundant number, since it is smaller than the sum of its proper divisors (19211904).

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

8856864 is a wasteful number, since it uses less digits than its factorization.

8856864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109 (or 89 counting only the distinct ones).

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

The square root of 8856864 is about 2976.0483867034. The cubic root of 8856864 is about 206.8997624329.

The spelling of 8856864 in words is "eight million, eight hundred fifty-six thousand, eight hundred sixty-four".