703728 has 60 divisors (see below), whose sum is σ = 2053688. Its totient is φ = 233280.

The previous prime is 703721. The next prime is 703733. The reversal of 703728 is 827307.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (703721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3798 + ... + 3978.

2⁷⁰³⁷²⁸ 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 703728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1026844).

703728 is an abundant number, since it is smaller than the sum of its proper divisors (1349960).

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

703728 is a wasteful number, since it uses less digits than its factorization.

703728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204 (or 186 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 703728 is about 838.8849742366. The cubic root of 703728 is about 88.9477452798.

It can be divided in two parts, 703 and 728, that added together give a triangular number (1431 = T₅₃).

The spelling of 703728 in words is "seven hundred three thousand, seven hundred twenty-eight".