8504409 has 8 divisors (see below), whose sum is σ = 11352832. Its totient is φ = 5662800.

The previous prime is 8504399. The next prime is 8504417. The reversal of 8504409 is 9044058.

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

It is not a de Polignac number, because 8504409 - 2⁴ = 8504393 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8504449) 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, 3384 + ... + 5334.

It is an arithmetic number, because the mean of its divisors is an integer number (1419104).

Almost surely, 2^8504409 is an apocalyptic number.

It is an amenable number.

8504409 is a deficient number, since it is larger than the sum of its proper divisors (2848423).

8504409 is a wasteful number, since it uses less digits than its factorization.

8504409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3407.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 8504409 is about 2916.2319866568. The cubic root of 8504409 is about 204.1180353051.

The spelling of 8504409 in words is "eight million, five hundred four thousand, four hundred nine".