8857856 has 36 divisors (see below), whose sum is σ = 20211072. Its totient is φ = 3795456.

The previous prime is 8857853. The next prime is 8857873. The reversal of 8857856 is 6587588.

It is a super-2 number, since 2×8857856² = 156923225833472, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8857856.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8857853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 680 + ... + 4263.

Almost surely, 2^8857856 is an apocalyptic number.

It is an amenable number.

8857856 is an abundant number, since it is smaller than the sum of its proper divisors (11353216).

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

8857856 is an equidigital number, since it uses as much as digits as its factorization.

8857856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4966 (or 4952 counting only the distinct ones).

The product of its digits is 537600, while the sum is 47.

The square root of 8857856 is about 2976.2150459938. The cubic root of 8857856 is about 206.9074866456.

The spelling of 8857856 in words is "eight million, eight hundred fifty-seven thousand, eight hundred fifty-six".