850816 has 48 divisors (see below), whose sum is σ = 1878840. Its totient is φ = 382976.

The previous prime is 850807. The next prime is 850823. The reversal of 850816 is 618058.

850816 = 21³ + 22³ + ... + 43³.

It is a happy number.

850816 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 5 ways as a sum of consecutive naturals, for example, 36981 + ... + 37003.

2⁸⁵⁰⁸¹⁶ 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 850816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (939420).

850816 is an abundant number, since it is smaller than the sum of its proper divisors (1028024).

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

850816 is a wasteful number, since it uses less digits than its factorization.

850816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71 (or 42 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 850816 is about 922.3968777050. The cubic root of 850816 is about 94.7571266073.

The spelling of 850816 in words is "eight hundred fifty thousand, eight hundred sixteen".