989039700 has 144 divisors (see below), whose sum is σ = 3468736320. Its totient is φ = 239760000.

The previous prime is 989039687. The next prime is 989039707. The reversal of 989039700 is 7930989.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989039707) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13050 + ... + 46350.

Almost surely, 2^989039700 is an apocalyptic number.

989039700 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 989039700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1734368160).

989039700 is an abundant number, since it is smaller than the sum of its proper divisors (2479696620).

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

989039700 is a wasteful number, since it uses less digits than its factorization.

989039700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33335 (or 33322 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The square root of 989039700 is about 31449.0015739769. The cubic root of 989039700 is about 996.3331372187. Note that the first 3 decimals are identical.

The spelling of 989039700 in words is "nine hundred eighty-nine million, thirty-nine thousand, seven hundred".