804100 has 72 divisors (see below), whose sum is σ = 2062368. Its totient is φ = 268800.

The previous prime is 804091. The next prime is 804107. The reversal of 804100 is 1408.

It is not an unprimeable number, because it can be changed into a prime (804107) by changing a digit.

804100 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 23 ways as a sum of consecutive naturals, for example, 18679 + ... + 18721.

It is an arithmetic number, because the mean of its divisors is an integer number (28644).

2⁸⁰⁴¹⁰⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 804100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1031184).

804100 is an abundant number, since it is smaller than the sum of its proper divisors (1258268).

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

804100 is a wasteful number, since it uses less digits than its factorization.

804100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85 (or 78 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 804100 is about 896.7162315917. The cubic root of 804100 is about 92.9900941390.

Adding to 804100 its reverse (1408), we get a palindrome (805508).

The spelling of 804100 in words is "eight hundred four thousand, one hundred".