989205672 has 96 divisors (see below), whose sum is σ = 3060521280. Its totient is φ = 260881920.

The previous prime is 989205671. The next prime is 989205677. The reversal of 989205672 is 276502989.

989205672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (989205671) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10972 + ... + 45812.

It is an arithmetic number, because the mean of its divisors is an integer number (31880430).

Almost surely, 2^989205672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 989205672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1530260640).

989205672 is an abundant number, since it is smaller than the sum of its proper divisors (2071315608).

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

989205672 is a wasteful number, since it uses less digits than its factorization.

989205672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34883 (or 34866 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 989205672 is about 31451.6402116010. The cubic root of 989205672 is about 996.3888660752.

The spelling of 989205672 in words is "nine hundred eighty-nine million, two hundred five thousand, six hundred seventy-two".