6783345 has 28 divisors (see below), whose sum is σ = 12210996. Its totient is φ = 3615840.

The previous prime is 6783331. The next prime is 6783353. The reversal of 6783345 is 5433876.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 746496 + 6036849 = 864^2 + 2457^2 .

It is not a de Polignac number, because 6783345 - 2⁸ = 6783089 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 2715 + ... + 4575.

It is an arithmetic number, because the mean of its divisors is an integer number (436107).

Almost surely, 2^6783345 is an apocalyptic number.

It is an amenable number.

6783345 is a deficient number, since it is larger than the sum of its proper divisors (5427651).

6783345 is an equidigital number, since it uses as much as digits as its factorization.

6783345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1884 (or 1869 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 6783345 is about 2604.4855538090. The cubic root of 6783345 is about 189.2988469418.

The spelling of 6783345 in words is "six million, seven hundred eighty-three thousand, three hundred forty-five".