6391163 has 8 divisors (see below), whose sum is σ = 6758400. Its totient is φ = 6027048.

The previous prime is 6391157. The next prime is 6391181. The reversal of 6391163 is 3611936.

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 6391163 - 2⁸ = 6390907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6391123) 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, 4358 + ... + 5636.

It is an arithmetic number, because the mean of its divisors is an integer number (844800).

Almost surely, 2^6391163 is an apocalyptic number.

6391163 is a deficient number, since it is larger than the sum of its proper divisors (367237).

6391163 is a wasteful number, since it uses less digits than its factorization.

6391163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1561.

The product of its digits is 2916, while the sum is 29.

The square root of 6391163 is about 2528.0749593317. The cubic root of 6391163 is about 185.5780603990.

The spelling of 6391163 in words is "six million, three hundred ninety-one thousand, one hundred sixty-three".