16854823 has 2 divisors, whose sum is σ = 16854824. Its totient is φ = 16854822.

The previous prime is 16854797. The next prime is 16854833. The reversal of 16854823 is 32845861.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16854823 is a prime.

It is a super-2 number, since 2×16854823² = 568170116722658, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16854833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8427411 + 8427412.

It is an arithmetic number, because the mean of its divisors is an integer number (8427412).

Almost surely, 2^16854823 is an apocalyptic number.

16854823 is a deficient number, since it is larger than the sum of its proper divisors (1).

16854823 is an equidigital number, since it uses as much as digits as its factorization.

16854823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46080, while the sum is 37.

The square root of 16854823 is about 4105.4625805139. The cubic root of 16854823 is about 256.3941225350.

The spelling of 16854823 in words is "sixteen million, eight hundred fifty-four thousand, eight hundred twenty-three".