8398163 has 4 divisors (see below), whose sum is σ = 8484840. Its totient is φ = 8311488.

The previous prime is 8398147. The next prime is 8398177. The reversal of 8398163 is 3618938.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8398163 - 2⁴ = 8398147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8398183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43193 + ... + 43386.

It is an arithmetic number, because the mean of its divisors is an integer number (2121210).

Almost surely, 2^8398163 is an apocalyptic number.

8398163 is a deficient number, since it is larger than the sum of its proper divisors (86677).

8398163 is an equidigital number, since it uses as much as digits as its factorization.

8398163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86676.

The product of its digits is 31104, while the sum is 38.

The square root of 8398163 is about 2897.9584193014. The cubic root of 8398163 is about 203.2644518691.

The spelling of 8398163 in words is "eight million, three hundred ninety-eight thousand, one hundred sixty-three".