6778396 has 6 divisors (see below), whose sum is σ = 11862200. Its totient is φ = 3389196.

The previous prime is 6778379. The next prime is 6778397. The reversal of 6778396 is 6938776.

6778396 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×6778396³ (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6778397) 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 as a sum of consecutive naturals, namely, 847296 + ... + 847303.

Almost surely, 2^6778396 is an apocalyptic number.

It is an amenable number.

6778396 is a deficient number, since it is larger than the sum of its proper divisors (5083804).

6778396 is a wasteful number, since it uses less digits than its factorization.

6778396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1694603 (or 1694601 counting only the distinct ones).

The product of its digits is 381024, while the sum is 46.

The square root of 6778396 is about 2603.5352887948. The cubic root of 6778396 is about 189.2527994574.

The spelling of 6778396 in words is "six million, seven hundred seventy-eight thousand, three hundred ninety-six".