989833149 has 16 divisors (see below), whose sum is σ = 1469122240. Its totient is φ = 658672560.

The previous prime is 989833121. The next prime is 989833151. The reversal of 989833149 is 941338989.

It is not a de Polignac number, because 989833149 - 2⁷ = 989833021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 989833095 and 989833104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989833189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18742 + ... + 48279.

It is an arithmetic number, because the mean of its divisors is an integer number (91820140).

Almost surely, 2^989833149 is an apocalyptic number.

It is an amenable number.

989833149 is a deficient number, since it is larger than the sum of its proper divisors (479289091).

989833149 is a wasteful number, since it uses less digits than its factorization.

989833149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67577 (or 67571 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 54.

The square root of 989833149 is about 31461.6138969380. The cubic root of 989833149 is about 996.5994993692.

The spelling of 989833149 in words is "nine hundred eighty-nine million, eight hundred thirty-three thousand, one hundred forty-nine".