6783355 has 4 divisors (see below), whose sum is σ = 8140032. Its totient is φ = 5426680.

The previous prime is 6783353. The next prime is 6783421. The reversal of 6783355 is 5533876.

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

It is not a de Polignac number, because 6783355 - 2¹ = 6783353 is a prime.

It is a d-powerful number, because it can be written as 6⁶ + 7 + 8³ + 3⁴ + 3¹⁴ + 5 + 5⁹ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6783353) 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, 678331 + ... + 678340.

It is an arithmetic number, because the mean of its divisors is an integer number (2035008).

Almost surely, 2^6783355 is an apocalyptic number.

6783355 is a deficient number, since it is larger than the sum of its proper divisors (1356677).

6783355 is a wasteful number, since it uses less digits than its factorization.

6783355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356676.

The product of its digits is 75600, while the sum is 37.

The square root of 6783355 is about 2604.4874735733. The cubic root of 6783355 is about 189.2989399632.

The spelling of 6783355 in words is "six million, seven hundred eighty-three thousand, three hundred fifty-five".