730349 has 4 divisors (see below), whose sum is σ = 732060. Its totient is φ = 728640.

The previous prime is 730339. The next prime is 730363. The reversal of 730349 is 943037.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 943037 = 101 ⋅9337.

It can be written as a sum of positive squares in 2 ways, for example, as 265225 + 465124 = 515^2 + 682^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-730349 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 (730339) 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, 389 + ... + 1269.

It is an arithmetic number, because the mean of its divisors is an integer number (183015).

2⁷³⁰³⁴⁹ is an apocalyptic number.

It is an amenable number.

730349 is a deficient number, since it is larger than the sum of its proper divisors (1711).

730349 is an equidigital number, since it uses as much as digits as its factorization.

730349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1710.

The product of its (nonzero) digits is 2268, while the sum is 26.

The square root of 730349 is about 854.6045869289. The cubic root of 730349 is about 90.0554801957.

The spelling of 730349 in words is "seven hundred thirty thousand, three hundred forty-nine".