785603728 has 120 divisors (see below), whose sum is σ = 1991108672. Its totient is φ = 292349952.

The previous prime is 785603723. The next prime is 785603759. The reversal of 785603728 is 827306587.

785603728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (785603723) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 419851 + ... + 421717.

Almost surely, 2^785603728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 785603728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (995554336).

785603728 is an abundant number, since it is smaller than the sum of its proper divisors (1205504944).

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

785603728 is a wasteful number, since it uses less digits than its factorization.

785603728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1929 (or 1906 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 46.

The square root of 785603728 is about 28028.6233696912. The cubic root of 785603728 is about 922.7155619764.

The spelling of 785603728 in words is "seven hundred eighty-five million, six hundred three thousand, seven hundred twenty-eight".