8491004 has 12 divisors (see below), whose sum is σ = 14884464. Its totient is φ = 4238304.

The previous prime is 8491001. The next prime is 8491033. The reversal of 8491004 is 4001948.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8491001) 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 3 ways as a sum of consecutive naturals, for example, 1544 + ... + 4400.

It is an arithmetic number, because the mean of its divisors is an integer number (1240372).

Almost surely, 2^8491004 is an apocalyptic number.

It is an amenable number.

8491004 is a deficient number, since it is larger than the sum of its proper divisors (6393460).

8491004 is a wasteful number, since it uses less digits than its factorization.

8491004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3604 (or 3602 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 8491004 is about 2913.9327377275. The cubic root of 8491004 is about 204.0107324867.

The spelling of 8491004 in words is "eight million, four hundred ninety-one thousand, four".