850817872 has 20 divisors (see below), whose sum is σ = 1735221280. Its totient is φ = 403018848.

The previous prime is 850817867. The next prime is 850817911. The reversal of 850817872 is 278718058.

It is a happy number.

850817872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1399068 + ... + 1399675.

It is an arithmetic number, because the mean of its divisors is an integer number (86761064).

Almost surely, 2^850817872 is an apocalyptic number.

It is an amenable number.

850817872 is an abundant number, since it is smaller than the sum of its proper divisors (884403408).

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

850817872 is a wasteful number, since it uses less digits than its factorization.

850817872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2798770 (or 2798764 counting only the distinct ones).

The product of its (nonzero) digits is 250880, while the sum is 46.

The square root of 850817872 is about 29168.7824908754. The cubic root of 850817872 is about 947.5719610344.

The spelling of 850817872 in words is "eight hundred fifty million, eight hundred seventeen thousand, eight hundred seventy-two".