6778028 has 6 divisors (see below), whose sum is σ = 11861556. Its totient is φ = 3389012.

The previous prime is 6778027. The next prime is 6778033. The reversal of 6778028 is 8208776.

It is a junction number, because it is equal to n+sod(n) for n = 6777982 and 6778000.

It is not an unprimeable number, because it can be changed into a prime (6778021) 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, 847250 + ... + 847257.

It is an arithmetic number, because the mean of its divisors is an integer number (1976926).

Almost surely, 2^6778028 is an apocalyptic number.

It is an amenable number.

6778028 is a deficient number, since it is larger than the sum of its proper divisors (5083528).

6778028 is a wasteful number, since it uses less digits than its factorization.

6778028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1694511 (or 1694509 counting only the distinct ones).

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

The square root of 6778028 is about 2603.4646147010. The cubic root of 6778028 is about 189.2493745424.

The spelling of 6778028 in words is "six million, seven hundred seventy-eight thousand, twenty-eight".