987631488 has 64 divisors (see below), whose sum is σ = 2914894800. Its totient is φ = 329209344.

The previous prime is 987631481. The next prime is 987631499. The reversal of 987631488 is 884136789.

987631488 is a `hidden beast` number, since 98 + 76 + 3 + 1 + 488 = 666.

987631488 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987631481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139431 + ... + 146342.

Almost surely, 2^987631488 is an apocalyptic number.

It is an amenable number.

987631488 is an abundant number, since it is smaller than the sum of its proper divisors (1927263312).

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

987631488 is a wasteful number, since it uses less digits than its factorization.

987631488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285796 (or 285778 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 54.

The square root of 987631488 is about 31426.6047800267. The cubic root of 987631488 is about 995.8600471086.

The spelling of 987631488 in words is "nine hundred eighty-seven million, six hundred thirty-one thousand, four hundred eighty-eight".