728536718 has 16 divisors (see below), whose sum is σ = 1344991200. Its totient is φ = 288212256.

The previous prime is 728536693. The next prime is 728536723. The reversal of 728536718 is 817635827.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2001293 + ... + 2001656.

It is an arithmetic number, because the mean of its divisors is an integer number (84061950).

Almost surely, 2^728536718 is an apocalyptic number.

728536718 is a deficient number, since it is larger than the sum of its proper divisors (616454482).

728536718 is a wasteful number, since it uses less digits than its factorization.

728536718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4002971.

The product of its digits is 564480, while the sum is 47.

The square root of 728536718 is about 26991.4193402274. The cubic root of 728536718 is about 899.8093085705.

The spelling of 728536718 in words is "seven hundred twenty-eight million, five hundred thirty-six thousand, seven hundred eighteen".