989898750 has 60 divisors (see below), whose sum is σ = 2680148328. Its totient is φ = 263970000.

The previous prime is 989898739. The next prime is 989898781. The reversal of 989898750 is 57898989.

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 29 ways as a sum of consecutive naturals, for example, 32746 + ... + 55245.

Almost surely, 2^989898750 is an apocalyptic number.

989898750 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

989898750 is an abundant number, since it is smaller than the sum of its proper divisors (1690249578).

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

989898750 is a wasteful number, since it uses less digits than its factorization.

989898750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88019 (or 88001 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 63.

The square root of 989898750 is about 31462.6564358447. The cubic root of 989898750 is about 996.6215153624.

The spelling of 989898750 in words is "nine hundred eighty-nine million, eight hundred ninety-eight thousand, seven hundred fifty".