987431163 has 8 divisors (see below), whose sum is σ = 1332437568. Its totient is φ = 650356104.

The previous prime is 987431161. The next prime is 987431171. The reversal of 987431163 is 361134789.

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

It is not a de Polignac number, because 987431163 - 2¹ = 987431161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (987431161) 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 7 ways as a sum of consecutive naturals, for example, 1982545 + ... + 1983042.

It is an arithmetic number, because the mean of its divisors is an integer number (166554696).

Almost surely, 2^987431163 is an apocalyptic number.

987431163 is a deficient number, since it is larger than the sum of its proper divisors (345006405).

987431163 is a wasteful number, since it uses less digits than its factorization.

987431163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3965673.

The product of its digits is 108864, while the sum is 42.

The square root of 987431163 is about 31423.4174303178. The cubic root of 987431163 is about 995.7927112125.

The spelling of 987431163 in words is "nine hundred eighty-seven million, four hundred thirty-one thousand, one hundred sixty-three".