985605163 has 4 divisors (see below), whose sum is σ = 997480008. Its totient is φ = 973730320.

The previous prime is 985605157. The next prime is 985605211. The reversal of 985605163 is 361506589.

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 985605163 - 2²¹ = 983508011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (985605113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5937298 + ... + 5937463.

It is an arithmetic number, because the mean of its divisors is an integer number (249370002).

Almost surely, 2^985605163 is an apocalyptic number.

985605163 is a deficient number, since it is larger than the sum of its proper divisors (11874845).

985605163 is a wasteful number, since it uses less digits than its factorization.

985605163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11874844.

The product of its (nonzero) digits is 194400, while the sum is 43.

The square root of 985605163 is about 31394.3492208391. The cubic root of 985605163 is about 995.1785116110.

The spelling of 985605163 in words is "nine hundred eighty-five million, six hundred five thousand, one hundred sixty-three".