9887086131 has 32 divisors (see below), whose sum is σ = 14525199360. Its totient is φ = 5945232384.

The previous prime is 9887086127. The next prime is 9887086133. The reversal of 9887086131 is 1316807889.

9887086131 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 9887086131 - 2² = 9887086127 is a prime.

It is a super-2 number, since 2×9887086131² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9887086133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 282316 + ... + 315398.

It is an arithmetic number, because the mean of its divisors is an integer number (453912480).

Almost surely, 2^9887086131 is an apocalyptic number.

9887086131 is a deficient number, since it is larger than the sum of its proper divisors (4638113229).

9887086131 is a wasteful number, since it uses less digits than its factorization.

9887086131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33275.

The product of its (nonzero) digits is 580608, while the sum is 51.

The square root of 9887086131 is about 99433.8279007703. The cubic root of 9887086131 is about 2146.2951251866.

The spelling of 9887086131 in words is "nine billion, eight hundred eighty-seven million, eighty-six thousand, one hundred thirty-one".