716297728 has 20 divisors (see below), whose sum is σ = 1431197460. Its totient is φ = 358148608.

The previous prime is 716297711. The next prime is 716297731. The reversal of 716297728 is 827792617.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 698998 + ... + 700021.

It is an arithmetic number, because the mean of its divisors is an integer number (71559873).

Almost surely, 2^716297728 is an apocalyptic number.

It is an amenable number.

716297728 is a deficient number, since it is larger than the sum of its proper divisors (714899732).

716297728 is an equidigital number, since it uses as much as digits as its factorization.

716297728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1399037 (or 1399021 counting only the distinct ones).

The product of its digits is 592704, while the sum is 49.

The square root of 716297728 is about 26763.7390511864. The cubic root of 716297728 is about 894.7420698020.

The spelling of 716297728 in words is "seven hundred sixteen million, two hundred ninety-seven thousand, seven hundred twenty-eight".