728719884 has 36 divisors (see below), whose sum is σ = 1891830304. Its totient is φ = 236341152.

The previous prime is 728719837. The next prime is 728719897. The reversal of 728719884 is 488917827.

It is a happy number.

728719884 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 728719884.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 272212 + ... + 274875.

Almost surely, 2^728719884 is an apocalyptic number.

728719884 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

It is an amenable number.

728719884 is an abundant number, since it is smaller than the sum of its proper divisors (1163110420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

728719884 is a wasteful number, since it uses less digits than its factorization.

728719884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547134 (or 547129 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 54.

The square root of 728719884 is about 26994.8121682667. The cubic root of 728719884 is about 899.8847111582.

The spelling of 728719884 in words is "seven hundred twenty-eight million, seven hundred nineteen thousand, eight hundred eighty-four".