6789321 has 48 divisors (see below), whose sum is σ = 12475008. Its totient is φ = 3456000.

The previous prime is 6789319. The next prime is 6789323. The reversal of 6789321 is 1239876.

6789321 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (6789319) and next prime (6789323).

It is not a de Polignac number, because 6789321 - 2¹ = 6789319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6789323) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 67171 + ... + 67271.

It is an arithmetic number, because the mean of its divisors is an integer number (259896).

Almost surely, 2^6789321 is an apocalyptic number.

It is an amenable number.

6789321 is a deficient number, since it is larger than the sum of its proper divisors (5685687).

6789321 is a wasteful number, since it uses less digits than its factorization.

6789321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222 (or 219 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 6789321 is about 2605.6325527595. The cubic root of 6789321 is about 189.3544202059.

It can be divided in two parts, 678 and 9321, that added together give a palindrome (9999).

The spelling of 6789321 in words is "six million, seven hundred eighty-nine thousand, three hundred twenty-one".