730393 has 4 divisors (see below), whose sum is σ = 744228. Its totient is φ = 716560.

The previous prime is 730363. The next prime is 730397. The reversal of 730393 is 393037.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 393037 = 29 ⋅13553.

It can be written as a sum of positive squares in 2 ways, for example, as 473344 + 257049 = 688^2 + 507^2 .

It is not a de Polignac number, because 730393 - 2¹⁷ = 599321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (730397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6838 + ... + 6943.

It is an arithmetic number, because the mean of its divisors is an integer number (186057).

2⁷³⁰³⁹³ is an apocalyptic number.

It is an amenable number.

730393 is a deficient number, since it is larger than the sum of its proper divisors (13835).

730393 is a wasteful number, since it uses less digits than its factorization.

730393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13834.

The product of its (nonzero) digits is 1701, while the sum is 25.

The square root of 730393 is about 854.6303294407. The cubic root of 730393 is about 90.0572886286.

It can be divided in two parts, 7303 and 93, that added together give a square (7396 = 86²).

The spelling of 730393 in words is "seven hundred thirty thousand, three hundred ninety-three".