16805343 has 4 divisors (see below), whose sum is σ = 22407128. Its totient is φ = 11203560.

The previous prime is 16805339. The next prime is 16805353. The reversal of 16805343 is 34350861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34350861 = 3 ⋅11450287.

It is not a de Polignac number, because 16805343 - 2² = 16805339 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16805343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16805323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2800888 + ... + 2800893.

It is an arithmetic number, because the mean of its divisors is an integer number (5601782).

Almost surely, 2^16805343 is an apocalyptic number.

16805343 is a deficient number, since it is larger than the sum of its proper divisors (5601785).

16805343 is an equidigital number, since it uses as much as digits as its factorization.

16805343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5601784.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 16805343 is about 4099.4320338310. The cubic root of 16805343 is about 256.1429814469.

The spelling of 16805343 in words is "sixteen million, eight hundred five thousand, three hundred forty-three".