6778208 has 24 divisors (see below), whose sum is σ = 13426560. Its totient is φ = 3368320.

The previous prime is 6778207. The next prime is 6778217. The reversal of 6778208 is 8028776.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6778201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5558 + ... + 6666.

It is an arithmetic number, because the mean of its divisors is an integer number (559440).

Almost surely, 2^6778208 is an apocalyptic number.

It is an amenable number.

6778208 is a deficient number, since it is larger than the sum of its proper divisors (6648352).

6778208 is a wasteful number, since it uses less digits than its factorization.

6778208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310 (or 1302 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 6778208 is about 2603.4991837909. The cubic root of 6778208 is about 189.2510497881.

The spelling of 6778208 in words is "six million, seven hundred seventy-eight thousand, two hundred eight".