989900212 has 24 divisors (see below), whose sum is σ = 1983139200. Its totient is φ = 423527520.

The previous prime is 989900189. The next prime is 989900273. The reversal of 989900212 is 212009989.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12739 + ... + 46282.

It is an arithmetic number, because the mean of its divisors is an integer number (82630800).

Almost surely, 2^989900212 is an apocalyptic number.

It is an amenable number.

989900212 is an abundant number, since it is smaller than the sum of its proper divisors (993238988).

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

989900212 is a wasteful number, since it uses less digits than its factorization.

989900212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59631 (or 59629 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 40.

The square root of 989900212 is about 31462.6796697293. The cubic root of 989900212 is about 996.6220060052.

It can be divided in two parts, 9 and 89900212, that multiplied together give a palindrome (809101908).

The spelling of 989900212 in words is "nine hundred eighty-nine million, nine hundred thousand, two hundred twelve".