850812 has 12 divisors (see below), whose sum is σ = 1985256. Its totient is φ = 283600.

The previous prime is 850807. The next prime is 850823. The reversal of 850812 is 218058.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 850812.

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, 35439 + ... + 35462.

It is an arithmetic number, because the mean of its divisors is an integer number (165438).

2⁸⁵⁰⁸¹² is an apocalyptic number.

It is an amenable number.

850812 is an abundant number, since it is smaller than the sum of its proper divisors (1134444).

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

850812 is a wasteful number, since it uses less digits than its factorization.

850812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70908 (or 70906 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 24.

The square root of 850812 is about 922.3947094384. The cubic root of 850812 is about 94.7569781110.

The spelling of 850812 in words is "eight hundred fifty thousand, eight hundred twelve".