804078 has 48 divisors (see below), whose sum is σ = 1976832. Its totient is φ = 234000.

The previous prime is 804077. The next prime is 804091. The reversal of 804078 is 870408.

It is a happy number.

804078 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 804078.

It is not an unprimeable number, because it can be changed into a prime (804073) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6073 + ... + 6203.

It is an arithmetic number, because the mean of its divisors is an integer number (41184).

2⁸⁰⁴⁰⁷⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 804078, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (988416).

804078 is an abundant number, since it is smaller than the sum of its proper divisors (1172754).

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

804078 is a wasteful number, since it uses less digits than its factorization.

804078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181 (or 178 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 804078 is about 896.7039645279. The cubic root of 804078 is about 92.9892460684.

It can be divided in two parts, 8040 and 78, that added together give a palindrome (8118).

The spelling of 804078 in words is "eight hundred four thousand, seventy-eight".