818804 has 12 divisors (see below), whose sum is σ = 1637664. Its totient is φ = 350904.

The previous prime is 818723. The next prime is 818813. The reversal of 818804 is 408818.

818804 = T₂ + T₃ + ... + T₁₆₉.

818804 is an admirable number.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a plaindrome in base 13.

It is a zygodrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14594 + ... + 14649.

It is an arithmetic number, because the mean of its divisors is an integer number (136472).

2⁸¹⁸⁸⁰⁴ is an apocalyptic number.

It is an amenable number.

818804 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

818804 is a wasteful number, since it uses less digits than its factorization.

818804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29254 (or 29252 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 29.

The square root of 818804 is about 904.8778923148. The cubic root of 818804 is about 93.5534882263.

The spelling of 818804 in words is "eight hundred eighteen thousand, eight hundred four".