938728 has 16 divisors (see below), whose sum is σ = 2011680. Its totient is φ = 402288.

The previous prime is 938713. The next prime is 938747. The reversal of 938728 is 827839.

938728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

938728 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8326 + ... + 8437.

It is an arithmetic number, because the mean of its divisors is an integer number (125730).

2⁹³⁸⁷²⁸ is an apocalyptic number.

It is an amenable number.

938728 is an abundant number, since it is smaller than the sum of its proper divisors (1072952).

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

938728 is a wasteful number, since it uses less digits than its factorization.

938728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16776 (or 16772 counting only the distinct ones).

The product of its digits is 24192, while the sum is 37.

The square root of 938728 is about 968.8797655024. The cubic root of 938728 is about 97.9144053399.

Subtracting from 938728 its reverse (827839), we obtain a square (110889 = 333²).

The spelling of 938728 in words is "nine hundred thirty-eight thousand, seven hundred twenty-eight".