6782 has 4 divisors (see below), whose sum is σ = 10176. Its totient is φ = 3390.

The previous prime is 6781. The next prime is 6791. The reversal of 6782 is 2876.

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

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1694 + ... + 1697.

It is an arithmetic number, because the mean of its divisors is an integer number (2544).

2⁶⁷⁸² is an apocalyptic number.

6782 is a deficient number, since it is larger than the sum of its proper divisors (3394).

6782 is a wasteful number, since it uses less digits than its factorization.

6782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3393.

The product of its digits is 672, while the sum is 23.

The square root of 6782 is about 82.3528991597. The cubic root of 6782 is about 18.9286334738.

The spelling of 6782 in words is "six thousand, seven hundred eighty-two".