989912 has 32 divisors (see below), whose sum is σ = 2315520. Its totient is φ = 385440.

The previous prime is 989909. The next prime is 989917. The reversal of 989912 is 219989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188 + ... + 1419.

It is an arithmetic number, because the mean of its divisors is an integer number (72360).

2⁹⁸⁹⁹¹² is an apocalyptic number.

It is an amenable number.

989912 is an abundant number, since it is smaller than the sum of its proper divisors (1325608).

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

989912 is a wasteful number, since it uses less digits than its factorization.

989912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1631 (or 1627 counting only the distinct ones).

The product of its digits is 11664, while the sum is 38.

The square root of 989912 is about 994.9432144600. The cubic root of 989912 is about 99.6625962004.

The spelling of 989912 in words is "nine hundred eighty-nine thousand, nine hundred twelve".