728875156 has 6 divisors (see below), whose sum is σ = 1275531530. Its totient is φ = 364437576.

The previous prime is 728875141. The next prime is 728875157. The reversal of 728875156 is 651578827.

It can be written as a sum of positive squares in only one way, i.e., 656896900 + 71978256 = 25630^2 + 8484^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728875157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 91109391 + ... + 91109398.

Almost surely, 2^728875156 is an apocalyptic number.

It is an amenable number.

728875156 is a deficient number, since it is larger than the sum of its proper divisors (546656374).

728875156 is a wasteful number, since it uses less digits than its factorization.

728875156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182218793 (or 182218791 counting only the distinct ones).

The product of its digits is 940800, while the sum is 49.

The square root of 728875156 is about 26997.6879750841. The cubic root of 728875156 is about 899.9486209352.

The spelling of 728875156 in words is "seven hundred twenty-eight million, eight hundred seventy-five thousand, one hundred fifty-six".