989894982 has 8 divisors (see below), whose sum is σ = 1979789976. Its totient is φ = 329964992.

The previous prime is 989894981. The next prime is 989894987. The reversal of 989894982 is 289498989.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

989894982 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989894981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82491243 + ... + 82491254.

It is an arithmetic number, because the mean of its divisors is an integer number (247473747).

Almost surely, 2^989894982 is an apocalyptic number.

989894982 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

989894982 is a wasteful number, since it uses less digits than its factorization.

989894982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164982502.

The product of its digits is 26873856, while the sum is 66.

The square root of 989894982 is about 31462.5965552750. The cubic root of 989894982 is about 996.6202508308.

The spelling of 989894982 in words is "nine hundred eighty-nine million, eight hundred ninety-four thousand, nine hundred eighty-two".