8408491 has 8 divisors (see below), whose sum is σ = 10349024. Its totient is φ = 6652800.

The previous prime is 8408461. The next prime is 8408513. The reversal of 8408491 is 1948048.

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

It is a de Polignac number, because none of the positive numbers 2^k-8408491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8408401) 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, 46110 + ... + 46291.

It is an arithmetic number, because the mean of its divisors is an integer number (1293628).

Almost surely, 2^8408491 is an apocalyptic number.

8408491 is a deficient number, since it is larger than the sum of its proper divisors (1940533).

8408491 is a wasteful number, since it uses less digits than its factorization.

8408491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92421.

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

The square root of 8408491 is about 2899.7398159145. The cubic root of 8408491 is about 203.3477421185.

The spelling of 8408491 in words is "eight million, four hundred eight thousand, four hundred ninety-one".