9875889 has 6 divisors (see below), whose sum is σ = 14265186. Its totient is φ = 6583920.

The previous prime is 9875821. The next prime is 9875893. The reversal of 9875889 is 9885789.

9875889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 9659664 + 216225 = 3108^2 + 465^2 .

It is not a de Polignac number, because 9875889 - 2⁹ = 9875377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9875389) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 548652 + ... + 548669.

It is an arithmetic number, because the mean of its divisors is an integer number (2377531).

Almost surely, 2^9875889 is an apocalyptic number.

It is an amenable number.

9875889 is a deficient number, since it is larger than the sum of its proper divisors (4389297).

9875889 is a wasteful number, since it uses less digits than its factorization.

9875889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1097327 (or 1097324 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 54.

The square root of 9875889 is about 3142.5927193959. The cubic root of 9875889 is about 214.5484592292.

The spelling of 9875889 in words is "nine million, eight hundred seventy-five thousand, eight hundred eighty-nine".