8320491 has 6 divisors (see below), whose sum is σ = 12018500. Its totient is φ = 5546988.

The previous prime is 8320471. The next prime is 8320519. The reversal of 8320491 is 1940238.

8320491 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8320491 - 2¹⁵ = 8287723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8320451) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 462241 + ... + 462258.

Almost surely, 2^8320491 is an apocalyptic number.

8320491 is a deficient number, since it is larger than the sum of its proper divisors (3698009).

8320491 is a wasteful number, since it uses less digits than its factorization.

8320491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924505 (or 924502 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 8320491 is about 2884.5261309269. The cubic root of 8320491 is about 202.6358667535.

The spelling of 8320491 in words is "eight million, three hundred twenty thousand, four hundred ninety-one".