728857316 has 48 divisors (see below), whose sum is σ = 1419949440. Its totient is φ = 324576000.

The previous prime is 728857313. The next prime is 728857343. The reversal of 728857316 is 613758827.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (728857313) 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 15 ways as a sum of consecutive naturals, for example, 564800 + ... + 566088.

It is an arithmetic number, because the mean of its divisors is an integer number (29582280).

Almost surely, 2^728857316 is an apocalyptic number.

It is an amenable number.

728857316 is a deficient number, since it is larger than the sum of its proper divisors (691092124).

728857316 is a wasteful number, since it uses less digits than its factorization.

728857316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1556 (or 1554 counting only the distinct ones).

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

The square root of 728857316 is about 26997.3575743998. The cubic root of 728857316 is about 899.9412784733.

The spelling of 728857316 in words is "seven hundred twenty-eight million, eight hundred fifty-seven thousand, three hundred sixteen".