606730309 has 4 divisors (see below), whose sum is σ = 607367916. Its totient is φ = 606092704.

The previous prime is 606730303. The next prime is 606730343. The reversal of 606730309 is 903037606.

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 476199684 + 130530625 = 21822^2 + 11425^2 .

It is a cyclic number.

It is not a de Polignac number, because 606730309 - 2⁵ = 606730277 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 (606730303) 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, 317374 + ... + 319279.

It is an arithmetic number, because the mean of its divisors is an integer number (151841979).

Almost surely, 2^606730309 is an apocalyptic number.

It is an amenable number.

606730309 is a deficient number, since it is larger than the sum of its proper divisors (637607).

606730309 is an equidigital number, since it uses as much as digits as its factorization.

606730309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637606.

The product of its (nonzero) digits is 20412, while the sum is 34.

The square root of 606730309 is about 24631.8961714278. The cubic root of 606730309 is about 846.5745923771.

The spelling of 606730309 in words is "six hundred six million, seven hundred thirty thousand, three hundred nine".