804789 has 16 divisors (see below), whose sum is σ = 1223040. Its totient is φ = 522720.

The previous prime is 804767. The next prime is 804803. The reversal of 804789 is 987408.

It is not a de Polignac number, because 804789 - 2⁵ = 804757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (804709) 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 15 ways as a sum of consecutive naturals, for example, 744 + ... + 1470.

It is an arithmetic number, because the mean of its divisors is an integer number (76440).

2⁸⁰⁴⁷⁸⁹ is an apocalyptic number.

It is an amenable number.

804789 is a deficient number, since it is larger than the sum of its proper divisors (418251).

804789 is a wasteful number, since it uses less digits than its factorization.

804789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777 (or 771 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 804789 is about 897.1003288373. The cubic root of 804789 is about 93.0166463439.

The spelling of 804789 in words is "eight hundred four thousand, seven hundred eighty-nine".