6730309 has 4 divisors (see below), whose sum is σ = 6746080. Its totient is φ = 6714540.

The previous prime is 6730289. The next prime is 6730319. The reversal of 6730309 is 9030376.

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 6730309 - 2⁵ = 6730277 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 (6730319) 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, 7227 + ... + 8104.

It is an arithmetic number, because the mean of its divisors is an integer number (1686520).

Almost surely, 2^6730309 is an apocalyptic number.

It is an amenable number.

6730309 is a deficient number, since it is larger than the sum of its proper divisors (15771).

6730309 is a wasteful number, since it uses less digits than its factorization.

6730309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15770.

The product of its (nonzero) digits is 3402, while the sum is 28.

The square root of 6730309 is about 2594.2839089043. The cubic root of 6730309 is about 188.8042073448.

The spelling of 6730309 in words is "six million, seven hundred thirty thousand, three hundred nine".