856324 has 36 divisors (see below), whose sum is σ = 1852956. Its totient is φ = 344064.

The previous prime is 856309. The next prime is 856333. The reversal of 856324 is 423658.

It can be written as a sum of positive squares in 2 ways, for example, as 777924 + 78400 = 882^2 + 280^2 .

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 856292 and 856301.

It is an unprimeable number.

856324 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3204 + ... + 3460.

It is an arithmetic number, because the mean of its divisors is an integer number (51471).

2⁸⁵⁶³²⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 856324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (926478).

856324 is an abundant number, since it is smaller than the sum of its proper divisors (996632).

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

856324 is a wasteful number, since it uses less digits than its factorization.

856324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292 (or 283 counting only the distinct ones).

The product of its digits is 5760, while the sum is 28.

The square root of 856324 is about 925.3777607010. The cubic root of 856324 is about 94.9611660298.

The spelling of 856324 in words is "eight hundred fifty-six thousand, three hundred twenty-four".