987899930 has 16 divisors (see below), whose sum is σ = 1781629344. Its totient is φ = 394402320.

The previous prime is 987899929. The next prime is 987899989. The reversal of 987899930 is 39998789.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89216 + ... + 99675.

It is an arithmetic number, because the mean of its divisors is an integer number (111351834).

Almost surely, 2^987899930 is an apocalyptic number.

987899930 is a deficient number, since it is larger than the sum of its proper divisors (793729414).

987899930 is a wasteful number, since it uses less digits than its factorization.

987899930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189421.

The product of its (nonzero) digits is 8817984, while the sum is 62.

The square root of 987899930 is about 31430.8754252884. The cubic root of 987899930 is about 995.9502651198.

The spelling of 987899930 in words is "nine hundred eighty-seven million, eight hundred ninety-nine thousand, nine hundred thirty".