987517380 has 48 divisors (see below), whose sum is σ = 2800062720. Its totient is φ = 260003328.

The previous prime is 987517379. The next prime is 987517409. The reversal of 987517380 is 83715789.

987517380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99429 + ... + 108908.

It is an arithmetic number, because the mean of its divisors is an integer number (58334640).

Almost surely, 2^987517380 is an apocalyptic number.

It is an amenable number.

987517380 is an abundant number, since it is smaller than the sum of its proper divisors (1812545340).

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

987517380 is a wasteful number, since it uses less digits than its factorization.

987517380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208428 (or 208426 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 48.

The square root of 987517380 is about 31424.7892594366. The cubic root of 987517380 is about 995.8216927303.

The spelling of 987517380 in words is "nine hundred eighty-seven million, five hundred seventeen thousand, three hundred eighty".