6782378 has 16 divisors (see below), whose sum is σ = 10673856. Its totient is φ = 3226080.

The previous prime is 6782351. The next prime is 6782381. The reversal of 6782378 is 8732876.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12758 + ... + 13278.

It is an arithmetic number, because the mean of its divisors is an integer number (667116).

Almost surely, 2^6782378 is an apocalyptic number.

6782378 is a deficient number, since it is larger than the sum of its proper divisors (3891478).

6782378 is a wasteful number, since it uses less digits than its factorization.

6782378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 829.

The product of its digits is 112896, while the sum is 41.

The square root of 6782378 is about 2604.2999059248. The cubic root of 6782378 is about 189.2898513463.

The spelling of 6782378 in words is "six million, seven hundred eighty-two thousand, three hundred seventy-eight".