6812321 has 8 divisors (see below), whose sum is σ = 7002624. Its totient is φ = 6624000.

The previous prime is 6812233. The next prime is 6812339. The reversal of 6812321 is 1232186.

6812321 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6812321 - 2¹⁸ = 6550177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6812341) 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 7 ways as a sum of consecutive naturals, for example, 8696 + ... + 9446.

It is an arithmetic number, because the mean of its divisors is an integer number (875328).

Almost surely, 2^6812321 is an apocalyptic number.

It is an amenable number.

6812321 is a deficient number, since it is larger than the sum of its proper divisors (190303).

6812321 is a wasteful number, since it uses less digits than its factorization.

6812321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991.

The product of its digits is 576, while the sum is 23.

The square root of 6812321 is about 2610.0423368214. The cubic root of 6812321 is about 189.5680028286.

The spelling of 6812321 in words is "six million, eight hundred twelve thousand, three hundred twenty-one".