728819792 has 40 divisors (see below), whose sum is σ = 1427587200. Its totient is φ = 360433280.

The previous prime is 728819783. The next prime is 728819797. The reversal of 728819792 is 297918827.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728819797) 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 in 7 ways as a sum of consecutive naturals, for example, 740933 + ... + 741915.

It is an arithmetic number, because the mean of its divisors is an integer number (35689680).

Almost surely, 2^728819792 is an apocalyptic number.

It is an amenable number.

728819792 is a deficient number, since it is larger than the sum of its proper divisors (698767408).

728819792 is a wasteful number, since it uses less digits than its factorization.

728819792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1451 (or 1445 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 53.

The square root of 728819792 is about 26996.6626085522. The cubic root of 728819792 is about 899.9258342176.

The spelling of 728819792 in words is "seven hundred twenty-eight million, eight hundred nineteen thousand, seven hundred ninety-two".