16811343 has 6 divisors (see below), whose sum is σ = 24283064. Its totient is φ = 11207556.

The previous prime is 16811341. The next prime is 16811359. The reversal of 16811343 is 34311861.

It is not a de Polignac number, because 16811343 - 2¹ = 16811341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16811341) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 933955 + ... + 933972.

Almost surely, 2^16811343 is an apocalyptic number.

16811343 is a deficient number, since it is larger than the sum of its proper divisors (7471721).

16811343 is a wasteful number, since it uses less digits than its factorization.

16811343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1867933 (or 1867930 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 16811343 is about 4100.1637772167. The cubic root of 16811343 is about 256.1734613371.

It can be divided in two parts, 168 and 11343, that added together give a palindrome (11511).

The spelling of 16811343 in words is "sixteen million, eight hundred eleven thousand, three hundred forty-three".