9989541 has 8 divisors (see below), whose sum is σ = 14799360. Its totient is φ = 6659676.

The previous prime is 9989509. The next prime is 9989569. The reversal of 9989541 is 1459899.

9989541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9989541 - 2⁵ = 9989509 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9989341) 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, 184965 + ... + 185018.

It is an arithmetic number, because the mean of its divisors is an integer number (1849920).

Almost surely, 2^9989541 is an apocalyptic number.

It is an amenable number.

9989541 is a deficient number, since it is larger than the sum of its proper divisors (4809819).

9989541 is a wasteful number, since it uses less digits than its factorization.

9989541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369992 (or 369986 counting only the distinct ones).

The product of its digits is 116640, while the sum is 45.

The square root of 9989541 is about 3160.6235144351. The cubic root of 9989541 is about 215.3683320271.

The spelling of 9989541 in words is "nine million, nine hundred eighty-nine thousand, five hundred forty-one".