9169985 has 24 divisors (see below), whose sum is σ = 12640320. Its totient is φ = 6369440.

The previous prime is 9169967. The next prime is 9169999. The reversal of 9169985 is 5899619.

It is not a de Polignac number, because 9169985 - 2⁶ = 9169921 is a prime.

It is an unprimeable number.

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, 13586 + ... + 14244.

It is an arithmetic number, because the mean of its divisors is an integer number (526680).

Almost surely, 2^9169985 is an apocalyptic number.

It is an amenable number.

9169985 is a deficient number, since it is larger than the sum of its proper divisors (3470335).

9169985 is a wasteful number, since it uses less digits than its factorization.

9169985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 709 (or 698 counting only the distinct ones).

The product of its digits is 174960, while the sum is 47.

The square root of 9169985 is about 3028.1983092261. The cubic root of 9169985 is about 209.3097898951.

It can be divided in two parts, 916 and 9985, that added together give a palindrome (10901).

The spelling of 9169985 in words is "nine million, one hundred sixty-nine thousand, nine hundred eighty-five".