728516983 has 4 divisors (see below), whose sum is σ = 728714448. Its totient is φ = 728319520.

The previous prime is 728516977. The next prime is 728516993. The reversal of 728516983 is 389615827.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 728516983 - 2⁹ = 728516471 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 (728516993) 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, 93091 + ... + 100612.

It is an arithmetic number, because the mean of its divisors is an integer number (182178612).

Almost surely, 2^728516983 is an apocalyptic number.

728516983 is a deficient number, since it is larger than the sum of its proper divisors (197465).

728516983 is a wasteful number, since it uses less digits than its factorization.

728516983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197464.

The product of its digits is 725760, while the sum is 49.

The square root of 728516983 is about 26991.0537586068. The cubic root of 728516983 is about 899.8011836553.

The spelling of 728516983 in words is "seven hundred twenty-eight million, five hundred sixteen thousand, nine hundred eighty-three".