16812343 has 4 divisors (see below), whose sum is σ = 16824640. Its totient is φ = 16800048.

The previous prime is 16812317. The next prime is 16812353. The reversal of 16812343 is 34321861.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16812343 - 2⁵ = 16812311 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 (16812353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3798 + ... + 6931.

It is an arithmetic number, because the mean of its divisors is an integer number (4206160).

Almost surely, 2^16812343 is an apocalyptic number.

16812343 is a deficient number, since it is larger than the sum of its proper divisors (12297).

16812343 is a wasteful number, since it uses less digits than its factorization.

16812343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12296.

The product of its digits is 3456, while the sum is 28.

The square root of 16812343 is about 4100.2857217516. The cubic root of 16812343 is about 256.1785406136.

The spelling of 16812343 in words is "sixteen million, eight hundred twelve thousand, three hundred forty-three".