988505889 has 8 divisors (see below), whose sum is σ = 1506294720. Its totient is φ = 564860496.

The previous prime is 988505879. The next prime is 988505893.

988505889 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 988505889 - 2⁵ = 988505857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (988505879) by changing a digit.

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, 23535834 + ... + 23535875.

It is an arithmetic number, because the mean of its divisors is an integer number (188286840).

Almost surely, 2^988505889 is an apocalyptic number.

It is an amenable number.

988505889 is a deficient number, since it is larger than the sum of its proper divisors (517788831).

988505889 is a wasteful number, since it uses less digits than its factorization.

988505889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47071719.

The product of its (nonzero) digits is 8294400, while the sum is 60.

The square root of 988505889 is about 31440.5134977150. The cubic root of 988505889 is about 996.1538558066.

The spelling of 988505889 in words is "nine hundred eighty-eight million, five hundred five thousand, eight hundred eighty-nine".