9889541 has 2 divisors, whose sum is σ = 9889542. Its totient is φ = 9889540.

The previous prime is 9889511. The next prime is 9889543. The reversal of 9889541 is 1459889.

9889541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9333025 + 556516 = 3055^2 + 746^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9889541 is a prime.

Together with 9889543, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 9889492 and 9889501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9889543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4944770 + 4944771.

It is an arithmetic number, because the mean of its divisors is an integer number (4944771).

Almost surely, 2^9889541 is an apocalyptic number.

It is an amenable number.

9889541 is a deficient number, since it is larger than the sum of its proper divisors (1).

9889541 is an equidigital number, since it uses as much as digits as its factorization.

9889541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 44.

The square root of 9889541 is about 3144.7640611022. The cubic root of 9889541 is about 214.6472745343.

The spelling of 9889541 in words is "nine million, eight hundred eighty-nine thousand, five hundred forty-one".