989951100 has 36 divisors (see below), whose sum is σ = 2864259384. Its totient is φ = 263986880.

The previous prime is 989951093. The next prime is 989951101. The reversal of 989951100 is 1159989.

989951100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989951101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1649619 + ... + 1650218.

Almost surely, 2^989951100 is an apocalyptic number.

It is an amenable number.

989951100 is an abundant number, since it is smaller than the sum of its proper divisors (1874308284).

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

989951100 is a wasteful number, since it uses less digits than its factorization.

989951100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3299854 (or 3299847 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 42.

The square root of 989951100 is about 31463.4883634984. The cubic root of 989951100 is about 996.6390835621.

The spelling of 989951100 in words is "nine hundred eighty-nine million, nine hundred fifty-one thousand, one hundred".