804728 has 8 divisors (see below), whose sum is σ = 1508880. Its totient is φ = 402360.

The previous prime is 804709. The next prime is 804743. The reversal of 804728 is 827408.

804728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 804728.

It is a congruent number.

It is an unprimeable number.

804728 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, 50288 + ... + 50303.

It is an arithmetic number, because the mean of its divisors is an integer number (188610).

2⁸⁰⁴⁷²⁸ is an apocalyptic number.

It is an amenable number.

804728 is a deficient number, since it is larger than the sum of its proper divisors (704152).

804728 is a wasteful number, since it uses less digits than its factorization.

804728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100597 (or 100593 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 804728 is about 897.0663297661. The cubic root of 804728 is about 93.0142961797.

The spelling of 804728 in words is "eight hundred four thousand, seven hundred twenty-eight".