987647320 has 32 divisors (see below), whose sum is σ = 2424226320. Its totient is φ = 359144320.

The previous prime is 987647299. The next prime is 987647333. The reversal of 987647320 is 23746789.

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, 1121887 + ... + 1122766.

Almost surely, 2^987647320 is an apocalyptic number.

It is an amenable number.

987647320 is an abundant number, since it is smaller than the sum of its proper divisors (1436579000).

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

987647320 is a wasteful number, since it uses less digits than its factorization.

987647320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2244675 (or 2244671 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 46.

The square root of 987647320 is about 31426.8566675065. The cubic root of 987647320 is about 995.8653683821.

The spelling of 987647320 in words is "nine hundred eighty-seven million, six hundred forty-seven thousand, three hundred twenty".