6778026 has 32 divisors (see below), whose sum is σ = 15552000. Its totient is φ = 2185920.

The previous prime is 6778021. The next prime is 6778027. The reversal of 6778026 is 6208776.

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 in 15 ways as a sum of consecutive naturals, for example, 351 + ... + 3698.

It is an arithmetic number, because the mean of its divisors is an integer number (486000).

Almost surely, 2^6778026 is an apocalyptic number.

6778026 is an abundant number, since it is smaller than the sum of its proper divisors (8773974).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6778026 is a wasteful number, since it uses less digits than its factorization.

6778026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4091 (or 4085 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 6778026 is about 2603.4642305974. The cubic root of 6778026 is about 189.2493559284.

The spelling of 6778026 in words is "six million, seven hundred seventy-eight thousand, twenty-six".