989387130 has 64 divisors (see below), whose sum is σ = 2459455488. Its totient is φ = 254560320.

The previous prime is 989387081. The next prime is 989387137. The reversal of 989387130 is 31783989.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 989387130.

It is not an unprimeable number, because it can be changed into a prime (989387137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 95169 + ... + 105051.

It is an arithmetic number, because the mean of its divisors is an integer number (38428992).

Almost surely, 2^989387130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 989387130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1229727744).

989387130 is an abundant number, since it is smaller than the sum of its proper divisors (1470068358).

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

989387130 is a wasteful number, since it uses less digits than its factorization.

989387130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10011.

The product of its (nonzero) digits is 326592, while the sum is 48.

The square root of 989387130 is about 31454.5247937399. The cubic root of 989387130 is about 996.4497875740.

The spelling of 989387130 in words is "nine hundred eighty-nine million, three hundred eighty-seven thousand, one hundred thirty".