987543764 has 24 divisors (see below), whose sum is σ = 1776348000. Its totient is φ = 480037536.

The previous prime is 987543737. The next prime is 987543793. The reversal of 987543764 is 467345789.

It is a congruent number.

It is an unprimeable number.

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, 280487 + ... + 283985.

It is an arithmetic number, because the mean of its divisors is an integer number (74014500).

Almost surely, 2^987543764 is an apocalyptic number.

It is an amenable number.

987543764 is a deficient number, since it is larger than the sum of its proper divisors (788804236).

987543764 is a wasteful number, since it uses less digits than its factorization.

987543764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5447 (or 5445 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 53.

The square root of 987543764 is about 31425.2090526062. The cubic root of 987543764 is about 995.8305612749.

The spelling of 987543764 in words is "nine hundred eighty-seven million, five hundred forty-three thousand, seven hundred sixty-four".