6807643 has 4 divisors (see below), whose sum is σ = 7165960. Its totient is φ = 6449328.

The previous prime is 6807641. The next prime is 6807649. The reversal of 6807643 is 3467086.

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 6807643 - 2¹ = 6807641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6807599 and 6807608.

It is not an unprimeable number, because it can be changed into a prime (6807641) 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, 179130 + ... + 179167.

It is an arithmetic number, because the mean of its divisors is an integer number (1791490).

Almost surely, 2^6807643 is an apocalyptic number.

6807643 is a deficient number, since it is larger than the sum of its proper divisors (358317).

6807643 is a wasteful number, since it uses less digits than its factorization.

6807643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358316.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 6807643 is about 2609.1460288761. The cubic root of 6807643 is about 189.5246009698.

The spelling of 6807643 in words is "six million, eight hundred seven thousand, six hundred forty-three".