6828109 has 2 divisors, whose sum is σ = 6828110. Its totient is φ = 6828108.

The previous prime is 6828103. The next prime is 6828131. The reversal of 6828109 is 9018286.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5978025 + 850084 = 2445^2 + 922^2 .

It is a cyclic number.

It is not a de Polignac number, because 6828109 - 2⁵ = 6828077 is a prime.

6828109 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6828103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3414054 + 3414055.

It is an arithmetic number, because the mean of its divisors is an integer number (3414055).

Almost surely, 2^6828109 is an apocalyptic number.

It is an amenable number.

6828109 is a deficient number, since it is larger than the sum of its proper divisors (1).

6828109 is an equidigital number, since it uses as much as digits as its factorization.

6828109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 6828109 is about 2613.0650585089. The cubic root of 6828109 is about 189.7143352616.

The spelling of 6828109 in words is "six million, eight hundred twenty-eight thousand, one hundred nine".