730609 has 8 divisors (see below), whose sum is σ = 844128. Its totient is φ = 624960.

The previous prime is 730603. The next prime is 730619. The reversal of 730609 is 906037.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 730609 - 2¹¹ = 728561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (730603) 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 7 ways as a sum of consecutive naturals, for example, 1767 + ... + 2140.

It is an arithmetic number, because the mean of its divisors is an integer number (105516).

2⁷³⁰⁶⁰⁹ is an apocalyptic number.

It is an amenable number.

730609 is a deficient number, since it is larger than the sum of its proper divisors (113519).

730609 is a wasteful number, since it uses less digits than its factorization.

730609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3935.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 730609 is about 854.7566905266. The cubic root of 730609 is about 90.0661653371.

The spelling of 730609 in words is "seven hundred thirty thousand, six hundred nine".