9887541 has 8 divisors (see below), whose sum is σ = 13342560. Its totient is φ = 6512112.

The previous prime is 9887509. The next prime is 9887573. The reversal of 9887541 is 1457889.

It is an interprime number because it is at equal distance from previous prime (9887509) and next prime (9887573).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9887541 - 2⁵ = 9887509 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

9887541 is a lucky number.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 9887493 and 9887502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9887041) 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, 19606 + ... + 20103.

It is an arithmetic number, because the mean of its divisors is an integer number (1667820).

Almost surely, 2^9887541 is an apocalyptic number.

It is an amenable number.

9887541 is a deficient number, since it is larger than the sum of its proper divisors (3455019).

9887541 is a wasteful number, since it uses less digits than its factorization.

9887541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39795.

The product of its digits is 80640, while the sum is 42.

The square root of 9887541 is about 3144.4460561441. The cubic root of 9887541 is about 214.6328039102.

The spelling of 9887541 in words is "nine million, eight hundred eighty-seven thousand, five hundred forty-one".