6828909 has 4 divisors (see below), whose sum is σ = 9105216. Its totient is φ = 4552604.

The previous prime is 6828893. The next prime is 6828911. The reversal of 6828909 is 9098286.

6828909 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6828909 - 2⁴ = 6828893 is a prime.

It is an Ulam number.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6828989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1138149 + ... + 1138154.

It is an arithmetic number, because the mean of its divisors is an integer number (2276304).

Almost surely, 2^6828909 is an apocalyptic number.

It is an amenable number.

6828909 is a deficient number, since it is larger than the sum of its proper divisors (2276307).

6828909 is a wasteful number, since it uses less digits than its factorization.

6828909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2276306.

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 6828909 is about 2613.2181309642. The cubic root of 6828909 is about 189.7217441231.

It can be divided in two parts, 682 and 8909, that added together give a triangular number (9591 = T₁₃₈).

The spelling of 6828909 in words is "six million, eight hundred twenty-eight thousand, nine hundred nine".