987491732 has 72 divisors (see below), whose sum is σ = 1882702080. Its totient is φ = 452511360.

The previous prime is 987491711. The next prime is 987491741. The reversal of 987491732 is 237194789.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13527248 + ... + 13527320.

It is an arithmetic number, because the mean of its divisors is an integer number (26148640).

Almost surely, 2^987491732 is an apocalyptic number.

It is an amenable number.

987491732 is a deficient number, since it is larger than the sum of its proper divisors (895210348).

987491732 is a wasteful number, since it uses less digits than its factorization.

987491732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253 (or 208 counting only the distinct ones).

The product of its digits is 762048, while the sum is 50.

The square root of 987491732 is about 31424.3811713135. The cubic root of 987491732 is about 995.8130714286.

The spelling of 987491732 in words is "nine hundred eighty-seven million, four hundred ninety-one thousand, seven hundred thirty-two".