856146 has 16 divisors (see below), whose sum is σ = 1721664. Its totient is φ = 283824.

The previous prime is 856139. The next prime is 856147. The reversal of 856146 is 641658.

It is not an unprimeable number, because it can be changed into a prime (856147) by changing a digit.

856146 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 1515 + ... + 2001.

It is an arithmetic number, because the mean of its divisors is an integer number (107604).

2⁸⁵⁶¹⁴⁶ is an apocalyptic number.

856146 is an abundant number, since it is smaller than the sum of its proper divisors (865518).

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

856146 is a wasteful number, since it uses less digits than its factorization.

856146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785.

The product of its digits is 5760, while the sum is 30.

The square root of 856146 is about 925.2815787640. The cubic root of 856146 is about 94.9545858651.

The spelling of 856146 in words is "eight hundred fifty-six thousand, one hundred forty-six".