852209856 has 56 divisors (see below), whose sum is σ = 2505344240. Its totient is φ = 284069376.

The previous prime is 852209797. The next prime is 852209861. The reversal of 852209856 is 658902258.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244861 + ... + 248316.

It is an arithmetic number, because the mean of its divisors is an integer number (44738290).

Almost surely, 2^852209856 is an apocalyptic number.

It is an amenable number.

852209856 is an abundant number, since it is smaller than the sum of its proper divisors (1653134384).

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

852209856 is a wasteful number, since it uses less digits than its factorization.

852209856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493198 (or 493182 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The square root of 852209856 is about 29192.6335913703. The cubic root of 852209856 is about 948.0884391134.

The spelling of 852209856 in words is "eight hundred fifty-two million, two hundred nine thousand, eight hundred fifty-six".