9890000989 has 16 divisors (see below), whose sum is σ = 11520013824. Its totient is φ = 8399991600.

The previous prime is 9890000977. The next prime is 9890001013.

9890000989 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 9890000989 - 2⁵ = 9890000957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9890000389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 443667 + ... + 465424.

It is an arithmetic number, because the mean of its divisors is an integer number (720000864).

Almost surely, 2^9890000989 is an apocalyptic number.

It is an amenable number.

9890000989 is a deficient number, since it is larger than the sum of its proper divisors (1630012835).

9890000989 is a wasteful number, since it uses less digits than its factorization.

9890000989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909168.

The product of its (nonzero) digits is 419904, while the sum is 52.

The square root of 9890000989 is about 99448.4840960384. The cubic root of 9890000989 is about 2146.5060242231.

It can be divided in two parts, 9890000 and 989, that multiplied together give a square (9781210000 = 98900²).

The spelling of 9890000989 in words is "nine billion, eight hundred ninety million, nine hundred eighty-nine", and thus it is an aban number.