728736573 has 16 divisors (see below), whose sum is σ = 978186240. Its totient is φ = 482566896.

The previous prime is 728736559. The next prime is 728736581. The reversal of 728736573 is 375637827.

It is not a de Polignac number, because 728736573 - 2⁴ = 728736557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728736373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 348136 + ... + 350222.

It is an arithmetic number, because the mean of its divisors is an integer number (61136640).

Almost surely, 2^728736573 is an apocalyptic number.

It is an amenable number.

728736573 is a deficient number, since it is larger than the sum of its proper divisors (249449667).

728736573 is a wasteful number, since it uses less digits than its factorization.

728736573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2816.

The product of its digits is 1481760, while the sum is 48.

The square root of 728736573 is about 26995.1212814464. The cubic root of 728736573 is about 899.8915807669.

The spelling of 728736573 in words is "seven hundred twenty-eight million, seven hundred thirty-six thousand, five hundred seventy-three".