857852850 has 144 divisors (see below), whose sum is σ = 2345162400. Its totient is φ = 206933760.

The previous prime is 857852843. The next prime is 857852887. The reversal of 857852850 is 58258758.

It is a happy number.

857852850 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 857852850.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1507366 + ... + 1507934.

It is an arithmetic number, because the mean of its divisors is an integer number (16285850).

Almost surely, 2^857852850 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 857852850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1172581200).

857852850 is an abundant number, since it is smaller than the sum of its proper divisors (1487309550).

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

857852850 is a wasteful number, since it uses less digits than its factorization.

857852850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649 (or 621 counting only the distinct ones).

The product of its (nonzero) digits is 896000, while the sum is 48.

The square root of 857852850 is about 29289.1251149637. The cubic root of 857852850 is about 950.1764584496.

The spelling of 857852850 in words is "eight hundred fifty-seven million, eight hundred fifty-two thousand, eight hundred fifty".