856029 has 4 divisors (see below), whose sum is σ = 1141376. Its totient is φ = 570684.

The previous prime is 856021. The next prime is 856043. The reversal of 856029 is 920658.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 856029 - 2³ = 856021 is a prime.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 855987 and 856005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (856021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142669 + ... + 142674.

It is an arithmetic number, because the mean of its divisors is an integer number (285344).

2⁸⁵⁶⁰²⁹ is an apocalyptic number.

It is an amenable number.

856029 is a deficient number, since it is larger than the sum of its proper divisors (285347).

856029 is a wasteful number, since it uses less digits than its factorization.

856029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285346.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 856029 is about 925.2183526066. The cubic root of 856029 is about 94.9502602039.

The spelling of 856029 in words is "eight hundred fifty-six thousand, twenty-nine".