728991596 has 12 divisors (see below), whose sum is σ = 1279351752. Its totient is φ = 363462528.

The previous prime is 728991587. The next prime is 728991607. The reversal of 728991596 is 695199827.

It is an unprimeable number.

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, 256730 + ... + 259553.

It is an arithmetic number, because the mean of its divisors is an integer number (106612646).

Almost surely, 2^728991596 is an apocalyptic number.

It is an amenable number.

728991596 is a deficient number, since it is larger than the sum of its proper divisors (550360156).

728991596 is a wasteful number, since it uses less digits than its factorization.

728991596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516640 (or 516638 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 56.

The square root of 728991596 is about 26999.8443699218. The cubic root of 728991596 is about 899.9965415505.

The spelling of 728991596 in words is "seven hundred twenty-eight million, nine hundred ninety-one thousand, five hundred ninety-six".