8491804 has 12 divisors (see below), whose sum is σ = 14881104. Its totient is φ = 4240064.

The previous prime is 8491801. The next prime is 8491817. The reversal of 8491804 is 4081948.

It is a super-2 number, since 2×8491804² = 144221470348832, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8491804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8491801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4692 + ... + 6244.

It is an arithmetic number, because the mean of its divisors is an integer number (1240092).

Almost surely, 2^8491804 is an apocalyptic number.

It is an amenable number.

8491804 is a deficient number, since it is larger than the sum of its proper divisors (6389300).

8491804 is a wasteful number, since it uses less digits than its factorization.

8491804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2924 (or 2922 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 8491804 is about 2914.0700060225. The cubic root of 8491804 is about 204.0171394032.

The spelling of 8491804 in words is "eight million, four hundred ninety-one thousand, eight hundred four".