9898448989 has 8 divisors (see below), whose sum is σ = 11628947232. Its totient is φ = 8306390640.

The previous prime is 9898448953. The next prime is 9898448993.

9898448989 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 9898448989 - 2⁹ = 9898448477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9898448389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34609819 + ... + 34610104.

It is an arithmetic number, because the mean of its divisors is an integer number (1453618404).

Almost surely, 2^9898448989 is an apocalyptic number.

It is an amenable number.

9898448989 is a deficient number, since it is larger than the sum of its proper divisors (1730498243).

9898448989 is a wasteful number, since it uses less digits than its factorization.

9898448989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69219947.

The product of its digits is 429981696, while the sum is 76.

The square root of 9898448989 is about 99490.9492818317. The cubic root of 9898448989 is about 2147.1170292884.

The spelling of 9898448989 in words is "nine billion, eight hundred ninety-eight million, four hundred forty-eight thousand, nine hundred eighty-nine".