6778280 has 16 divisors (see below), whose sum is σ = 15251220. Its totient is φ = 2711296.

The previous prime is 6778273. The next prime is 6778283. The reversal of 6778280 is 828776.

It can be written as a sum of positive squares in 2 ways, for example, as 6666724 + 111556 = 2582^2 + 334^2 .

It is not an unprimeable number, because it can be changed into a prime (6778283) 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 3 ways as a sum of consecutive naturals, for example, 84689 + ... + 84768.

Almost surely, 2^6778280 is an apocalyptic number.

It is an amenable number.

6778280 is an abundant number, since it is smaller than the sum of its proper divisors (8472940).

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

6778280 is a wasteful number, since it uses less digits than its factorization.

6778280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169468 (or 169464 counting only the distinct ones).

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

The square root of 6778280 is about 2603.5130112984. The cubic root of 6778280 is about 189.2517198780.

The spelling of 6778280 in words is "six million, seven hundred seventy-eight thousand, two hundred eighty".