8218804 has 18 divisors (see below), whose sum is σ = 15810242. Its totient is φ = 3735600.

The previous prime is 8218801. The next prime is 8218817. The reversal of 8218804 is 4088128.

It can be written as a sum of positive squares in only one way, i.e., 8179600 + 39204 = 2860^2 + 198^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8218801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8007 + ... + 8974.

Almost surely, 2^8218804 is an apocalyptic number.

It is an amenable number.

8218804 is a deficient number, since it is larger than the sum of its proper divisors (7591438).

8218804 is a wasteful number, since it uses less digits than its factorization.

8218804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17007 (or 16994 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 31.

The square root of 8218804 is about 2866.8456533270. The cubic root of 8218804 is about 201.8069914084.

It can be divided in two parts, 8 and 218804, that added together give a palindrome (218812).

The spelling of 8218804 in words is "eight million, two hundred eighteen thousand, eight hundred four".