9872163 has 24 divisors (see below), whose sum is σ = 16380000. Its totient is φ = 5612544.

The previous prime is 9872131. The next prime is 9872171. The reversal of 9872163 is 3612789.

It is a Cunningham number, because it is equal to 3142²-1.

It is not a de Polignac number, because 9872163 - 2⁵ = 9872131 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (9872113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21763 + ... + 22211.

It is an arithmetic number, because the mean of its divisors is an integer number (682500).

Almost surely, 2^9872163 is an apocalyptic number.

9872163 is a deficient number, since it is larger than the sum of its proper divisors (6507837).

9872163 is a wasteful number, since it uses less digits than its factorization.

9872163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811 (or 808 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 9872163 is about 3141.9998408657. Note that the first 3 decimals coincide. The cubic root of 9872163 is about 214.5214740429.

The spelling of 9872163 in words is "nine million, eight hundred seventy-two thousand, one hundred sixty-three".