730709 has 8 divisors (see below), whose sum is σ = 853248. Its totient is φ = 612720.

The previous prime is 730679. The next prime is 730727. The reversal of 730709 is 907037.

730709 = 44³ + 45³ + ... + 50³.

It is a happy number.

730709 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-730709 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 730709.

It is not an unprimeable number, because it can be changed into a prime (730789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 782 + ... + 1439.

It is an arithmetic number, because the mean of its divisors is an integer number (106656).

2⁷³⁰⁷⁰⁹ is an apocalyptic number.

It is an amenable number.

730709 is a deficient number, since it is larger than the sum of its proper divisors (122539).

730709 is a wasteful number, since it uses less digits than its factorization.

730709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2275.

The product of its (nonzero) digits is 1323, while the sum is 26.

The square root of 730709 is about 854.8151847037. The cubic root of 730709 is about 90.0702743318.

The spelling of 730709 in words is "seven hundred thirty thousand, seven hundred nine".