856330 has 16 divisors (see below), whose sum is σ = 1622880. Its totient is φ = 324432.

The previous prime is 856309. The next prime is 856333. The reversal of 856330 is 33658.

It is a junction number, because it is equal to n+sod(n) for n = 856295 and 856304.

It is not an unprimeable number, because it can be changed into a prime (856333) 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, 2064 + ... + 2443.

It is an arithmetic number, because the mean of its divisors is an integer number (101430).

2⁸⁵⁶³³⁰ is an apocalyptic number.

856330 is a deficient number, since it is larger than the sum of its proper divisors (766550).

856330 is a wasteful number, since it uses less digits than its factorization.

856330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4533.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 856330 is about 925.3810026146. The cubic root of 856330 is about 94.9613878172.

Adding to 856330 its reverse (33658), we get a palindrome (889988).

The spelling of 856330 in words is "eight hundred fifty-six thousand, three hundred thirty".