8004491 has 8 divisors (see below), whose sum is σ = 9192000. Its totient is φ = 6893640.

The previous prime is 8004487. The next prime is 8004511. The reversal of 8004491 is 1944008.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8004491 - 2² = 8004487 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8004491.

It is not an unprimeable number, because it can be changed into a prime (8004401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18941 + ... + 19358.

It is an arithmetic number, because the mean of its divisors is an integer number (1149000).

Almost surely, 2^8004491 is an apocalyptic number.

8004491 is a deficient number, since it is larger than the sum of its proper divisors (1187509).

8004491 is a wasteful number, since it uses less digits than its factorization.

8004491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38329.

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

The square root of 8004491 is about 2829.2209174965. The cubic root of 8004491 is about 200.0374179990.

Adding to 8004491 its reverse (1944008), we get a palindrome (9948499).

The spelling of 8004491 in words is "eight million, four thousand, four hundred ninety-one".