9989189 has 8 divisors (see below), whose sum is σ = 11649600. Its totient is φ = 8561868.

The previous prime is 9989179. The next prime is 9989191. The reversal of 9989189 is 9819899.

It is not a de Polignac number, because 9989189 - 2⁴ = 9989173 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9989189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9989159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14219 + ... + 14904.

It is an arithmetic number, because the mean of its divisors is an integer number (1456200).

Almost surely, 2^9989189 is an apocalyptic number.

It is an amenable number.

9989189 is a deficient number, since it is larger than the sum of its proper divisors (1660411).

9989189 is an equidigital number, since it uses as much as digits as its factorization.

9989189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29144 (or 29130 counting only the distinct ones).

The product of its digits is 419904, while the sum is 53.

The square root of 9989189 is about 3160.5678287295. The cubic root of 9989189 is about 215.3658023632.

The spelling of 9989189 in words is "nine million, nine hundred eighty-nine thousand, one hundred eighty-nine".