856323 has 18 divisors (see below), whose sum is σ = 1341756. Its totient is φ = 526032.

The previous prime is 856309. The next prime is 856333. The reversal of 856323 is 323658.

It is not a de Polignac number, because 856323 - 2¹³ = 848131 is a prime.

It is an alternating number because its digits alternate between even and odd.

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 17 ways as a sum of consecutive naturals, for example, 1240 + ... + 1802.

It is an arithmetic number, because the mean of its divisors is an integer number (74542).

2⁸⁵⁶³²³ is an apocalyptic number.

856323 is a deficient number, since it is larger than the sum of its proper divisors (485433).

856323 is a wasteful number, since it uses less digits than its factorization.

856323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595 (or 579 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 856323 is about 925.3772203810. The cubic root of 856323 is about 94.9611290651.

The spelling of 856323 in words is "eight hundred fifty-six thousand, three hundred twenty-three".