850500 has 144 divisors (see below), whose sum is σ = 3179904. Its totient is φ = 194400.

The previous prime is 850481. The next prime is 850529. The reversal of 850500 is 5058.

850500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 121497 + ... + 121503.

2⁸⁵⁰⁵⁰⁰ 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 850500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1589952).

850500 is an abundant number, since it is smaller than the sum of its proper divisors (2329404).

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

850500 is a wasteful number, since it uses less digits than its factorization.

850500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41 (or 17 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 850500 is about 922.2255689364. The cubic root of 850500 is about 94.7453939648.

Adding to 850500 its reverse (5058), we get a palindrome (855558).

The spelling of 850500 in words is "eight hundred fifty thousand, five hundred".