730324073 has 4 divisors (see below), whose sum is σ = 732960900. Its totient is φ = 727687248.

The previous prime is 730324043. The next prime is 730324141. The reversal of 730324073 is 370423037.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 370423037 = 577 ⋅641981.

It can be written as a sum of positive squares in 2 ways, for example, as 73068304 + 657255769 = 8548^2 + 25637^2 .

It is a cyclic number.

It is not a de Polignac number, because 730324073 - 2¹⁴ = 730307689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (730324003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1317998 + ... + 1318551.

It is an arithmetic number, because the mean of its divisors is an integer number (183240225).

Almost surely, 2^730324073 is an apocalyptic number.

It is an amenable number.

730324073 is a deficient number, since it is larger than the sum of its proper divisors (2636827).

730324073 is a wasteful number, since it uses less digits than its factorization.

730324073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2636826.

The product of its (nonzero) digits is 10584, while the sum is 29.

The square root of 730324073 is about 27024.5087466914. The cubic root of 730324073 is about 900.5445564510.

The spelling of 730324073 in words is "seven hundred thirty million, three hundred twenty-four thousand, seventy-three".