16856323 has 16 divisors (see below), whose sum is σ = 18911232. Its totient is φ = 14896000.

The previous prime is 16856317. The next prime is 16856327. The reversal of 16856323 is 32365861.

It is a cyclic number.

It is not a de Polignac number, because 16856323 - 2¹⁷ = 16725251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16856327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88158 + ... + 88348.

It is an arithmetic number, because the mean of its divisors is an integer number (1181952).

Almost surely, 2^16856323 is an apocalyptic number.

16856323 is a deficient number, since it is larger than the sum of its proper divisors (2054909).

16856323 is a wasteful number, since it uses less digits than its factorization.

16856323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386.

The product of its digits is 25920, while the sum is 34.

The square root of 16856323 is about 4105.6452598830. The cubic root of 16856323 is about 256.4017282665.

It can be divided in two parts, 1685 and 6323, that added together give a palindrome (8008).

The spelling of 16856323 in words is "sixteen million, eight hundred fifty-six thousand, three hundred twenty-three".