989810976 has 432 divisors, whose sum is σ = 3484591488. Its totient is φ = 244823040.

The previous prime is 989810951. The next prime is 989810981. The reversal of 989810976 is 679018989.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 21059785 + ... + 21059831.

It is an arithmetic number, because the mean of its divisors is an integer number (8066184).

Almost surely, 2^989810976 is an apocalyptic number.

989810976 is a gapful number since it is divisible by the number (96) 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 989810976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1742295744).

989810976 is an abundant number, since it is smaller than the sum of its proper divisors (2494780512).

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

989810976 is a wasteful number, since it uses less digits than its factorization.

989810976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 57.

The square root of 989810976 is about 31461.2615131689. The cubic root of 989810976 is about 996.5920577899.

The spelling of 989810976 in words is "nine hundred eighty-nine million, eight hundred ten thousand, nine hundred seventy-six".