930728 has 8 divisors (see below), whose sum is σ = 1745130. Its totient is φ = 465360.

The previous prime is 930719. The next prime is 930737. The reversal of 930728 is 827039.

930728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (930719) and next prime (930737).

It can be written as a sum of positive squares in only one way, i.e., 702244 + 228484 = 838^2 + 478^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 930728.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 930728.

It is an unprimeable number.

930728 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 as a sum of consecutive naturals, namely, 58163 + ... + 58178.

2⁹³⁰⁷²⁸ is an apocalyptic number.

It is an amenable number.

930728 is a deficient number, since it is larger than the sum of its proper divisors (814402).

930728 is a wasteful number, since it uses less digits than its factorization.

930728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116347 (or 116343 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 930728 is about 964.7424526784. The cubic root of 930728 is about 97.6354636868.

The spelling of 930728 in words is "nine hundred thirty thousand, seven hundred twenty-eight".