856412 has 12 divisors (see below), whose sum is σ = 1506456. Its totient is φ = 426000.

The previous prime is 856411. The next prime is 856417. The reversal of 856412 is 214658.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct 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 856412.

It is not an unprimeable number, because it can be changed into a prime (856411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 578 + ... + 1430.

It is an arithmetic number, because the mean of its divisors is an integer number (125538).

2⁸⁵⁶⁴¹² is an apocalyptic number.

It is an amenable number.

856412 is a deficient number, since it is larger than the sum of its proper divisors (650044).

856412 is a wasteful number, since it uses less digits than its factorization.

856412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1108 (or 1106 counting only the distinct ones).

The product of its digits is 1920, while the sum is 26.

The square root of 856412 is about 925.4253076289. The cubic root of 856412 is about 94.9644188081.

The spelling of 856412 in words is "eight hundred fifty-six thousand, four hundred twelve".