850147844 has 144 divisors (see below), whose sum is σ = 1973422080. Its totient is φ = 317157120.

The previous prime is 850147843. The next prime is 850147897. The reversal of 850147844 is 448741058.

It is a super-3 number, since 3×850147844³ (a number of 28 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (850147841) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3712322 + ... + 3712550.

It is an arithmetic number, because the mean of its divisors is an integer number (13704320).

Almost surely, 2^850147844 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 850147844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (986711040).

850147844 is an abundant number, since it is smaller than the sum of its proper divisors (1123274236).

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

850147844 is a wasteful number, since it uses less digits than its factorization.

850147844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338 (or 329 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 41.

The square root of 850147844 is about 29157.2948676656. The cubic root of 850147844 is about 947.3231547570.

The spelling of 850147844 in words is "eight hundred fifty million, one hundred forty-seven thousand, eight hundred forty-four".