850523872 has 96 divisors (see below), whose sum is σ = 1957102560. Its totient is φ = 359546880.

The previous prime is 850523857. The next prime is 850523873. The reversal of 850523872 is 278325058.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (850523873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 531778 + ... + 533374.

It is an arithmetic number, because the mean of its divisors is an integer number (20386485).

Almost surely, 2^850523872 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 850523872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (978551280).

850523872 is an abundant number, since it is smaller than the sum of its proper divisors (1106578688).

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

850523872 is a wasteful number, since it uses less digits than its factorization.

850523872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1724 (or 1716 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 40.

The square root of 850523872 is about 29163.7424210268. The cubic root of 850523872 is about 947.4628040062.

The spelling of 850523872 in words is "eight hundred fifty million, five hundred twenty-three thousand, eight hundred seventy-two".