728515713 has 8 divisors (see below), whose sum is σ = 971484448. Its totient is φ = 485612064.

The previous prime is 728515709. The next prime is 728515729. The reversal of 728515713 is 317515827.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 728515713 - 2² = 728515709 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (728515783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24306 + ... + 45252.

It is an arithmetic number, because the mean of its divisors is an integer number (121435556).

Almost surely, 2^728515713 is an apocalyptic number.

It is an amenable number.

728515713 is a deficient number, since it is larger than the sum of its proper divisors (242968735).

728515713 is a wasteful number, since it uses less digits than its factorization.

728515713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32543.

The product of its digits is 58800, while the sum is 39.

The square root of 728515713 is about 26991.0302322827. The cubic root of 728515713 is about 899.8006607903.

The spelling of 728515713 in words is "seven hundred twenty-eight million, five hundred fifteen thousand, seven hundred thirteen".