856212 has 24 divisors (see below), whose sum is σ = 2283456. Its totient is φ = 244608.

The previous prime is 856187. The next prime is 856213. The reversal of 856212 is 212658.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (856213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5013 + ... + 5180.

It is an arithmetic number, because the mean of its divisors is an integer number (95144).

2⁸⁵⁶²¹² is an apocalyptic number.

It is an amenable number.

856212 is an abundant number, since it is smaller than the sum of its proper divisors (1427244).

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

856212 is a wasteful number, since it uses less digits than its factorization.

856212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10207 (or 10205 counting only the distinct ones).

The product of its digits is 960, while the sum is 24.

The square root of 856212 is about 925.3172428956. The cubic root of 856212 is about 94.9570258078.

The spelling of 856212 in words is "eight hundred fifty-six thousand, two hundred twelve".