9875172 has 24 divisors (see below), whose sum is σ = 23478336. Its totient is φ = 3229408.

The previous prime is 9875171. The next prime is 9875209. The reversal of 9875172 is 2715789.

It is a self number, because there is not a number n which added to its sum of digits gives 9875172.

It is not an unprimeable number, because it can be changed into a prime (9875171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7128 + ... + 8399.

It is an arithmetic number, because the mean of its divisors is an integer number (978264).

Almost surely, 2^9875172 is an apocalyptic number.

It is an amenable number.

9875172 is an abundant number, since it is smaller than the sum of its proper divisors (13603164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9875172 is a wasteful number, since it uses less digits than its factorization.

9875172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15587 (or 15585 counting only the distinct ones).

The product of its digits is 35280, while the sum is 39.

The square root of 9875172 is about 3142.4786395455. The cubic root of 9875172 is about 214.5432669551.

The spelling of 9875172 in words is "nine million, eight hundred seventy-five thousand, one hundred seventy-two".