6398163 has 16 divisors (see below), whose sum is σ = 9891840. Its totient is φ = 4079592.

The previous prime is 6398159. The next prime is 6398167. The reversal of 6398163 is 3618936.

It is a happy number.

6398163 is a `hidden beast` number, since 639 + 8 + 16 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (6398159) and next prime (6398167).

It is not a de Polignac number, because 6398163 - 2² = 6398159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6398167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4531 + ... + 5772.

It is an arithmetic number, because the mean of its divisors is an integer number (618240).

Almost surely, 2^6398163 is an apocalyptic number.

6398163 is a deficient number, since it is larger than the sum of its proper divisors (3493677).

6398163 is a wasteful number, since it uses less digits than its factorization.

6398163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10335 (or 10329 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 6398163 is about 2529.4590330741. The cubic root of 6398163 is about 185.6457878974.

It can be divided in two parts, 6398 and 163, that added together give a 8-th power (6561 = 3⁸).

The spelling of 6398163 in words is "six million, three hundred ninety-eight thousand, one hundred sixty-three".