6830309 has 4 divisors (see below), whose sum is σ = 6876300. Its totient is φ = 6784320.

The previous prime is 6830303. The next prime is 6830339. The reversal of 6830309 is 9030386.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2512225 + 4318084 = 1585^2 + 2078^2 .

It is a cyclic number.

It is not a de Polignac number, because 6830309 - 2⁸ = 6830053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6830303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22772 + ... + 23069.

It is an arithmetic number, because the mean of its divisors is an integer number (1719075).

Almost surely, 2^6830309 is an apocalyptic number.

It is an amenable number.

6830309 is a deficient number, since it is larger than the sum of its proper divisors (45991).

6830309 is a wasteful number, since it uses less digits than its factorization.

6830309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45990.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 6830309 is about 2613.4859861878. The cubic root of 6830309 is about 189.7347082385.

The spelling of 6830309 in words is "six million, eight hundred thirty thousand, three hundred nine".