987899998 has 8 divisors (see below), whose sum is σ = 1486248192. Its totient is φ = 492483936.

The previous prime is 987899989. The next prime is 987899999. The reversal of 987899998 is 899998789.

987899998 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987899999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 732190 + ... + 733537.

It is an arithmetic number, because the mean of its divisors is an integer number (185781024).

Almost surely, 2^987899998 is an apocalyptic number.

987899998 is a deficient number, since it is larger than the sum of its proper divisors (498348194).

987899998 is a wasteful number, since it uses less digits than its factorization.

987899998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1466066.

The product of its digits is 211631616, while the sum is 76.

The square root of 987899998 is about 31430.8765070273. The cubic root of 987899998 is about 995.9502879711.

The spelling of 987899998 in words is "nine hundred eighty-seven million, eight hundred ninety-nine thousand, nine hundred ninety-eight".