728901803 has 12 divisors (see below), whose sum is σ = 865949472. Its totient is φ = 611478000.

The previous prime is 728901799. The next prime is 728901829. The reversal of 728901803 is 308109827.

728901803 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 728901803 - 2² = 728901799 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (728901893) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 155948 + ... + 160553.

It is an arithmetic number, because the mean of its divisors is an integer number (72162456).

Almost surely, 2^728901803 is an apocalyptic number.

728901803 is a deficient number, since it is larger than the sum of its proper divisors (137047669).

728901803 is a wasteful number, since it uses less digits than its factorization.

728901803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316562 (or 316555 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 728901803 is about 26998.1814757957. The cubic root of 728901803 is about 899.9595878974.

The spelling of 728901803 in words is "seven hundred twenty-eight million, nine hundred one thousand, eight hundred three".