987634544 has 40 divisors (see below), whose sum is σ = 2064503280. Its totient is φ = 454998528.

The previous prime is 987634541. The next prime is 987634597. The reversal of 987634544 is 445436789.

It is a junction number, because it is equal to n+sod(n) for n = 987634492 and 987634501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987634541) 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, 118052 + ... + 126140.

It is an arithmetic number, because the mean of its divisors is an integer number (51612582).

Almost surely, 2^987634544 is an apocalyptic number.

It is an amenable number.

987634544 is an abundant number, since it is smaller than the sum of its proper divisors (1076868736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

987634544 is a wasteful number, since it uses less digits than its factorization.

987634544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8697 (or 8691 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 50.

The square root of 987634544 is about 31426.6534012134. The cubic root of 987634544 is about 995.8610742613.

The spelling of 987634544 in words is "nine hundred eighty-seven million, six hundred thirty-four thousand, five hundred forty-four".