850800852 has 108 divisors (see below), whose sum is σ = 2379691860. Its totient is φ = 256101120.

The previous prime is 850800851. The next prime is 850800857. The reversal of 850800852 is 258008058.

It can be written as a sum of positive squares in 2 ways, for example, as 421316676 + 429484176 = 20526^2 + 20724^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (850800851) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 753024 + ... + 754152.

Almost surely, 2^850800852 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 850800852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1189845930).

850800852 is an abundant number, since it is smaller than the sum of its proper divisors (1528891008).

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

850800852 is a wasteful number, since it uses less digits than its factorization.

850800852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1334 (or 1318 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 36.

The square root of 850800852 is about 29168.4907391521. The cubic root of 850800852 is about 947.5656424936.

The spelling of 850800852 in words is "eight hundred fifty million, eight hundred thousand, eight hundred fifty-two".