9895005989 has 12 divisors (see below), whose sum is σ = 10884017760. Its totient is φ = 8989101000.

The previous prime is 9895005983. The next prime is 9895005997.

9895005989 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 9895005989 - 2²⁰ = 9893957413 is a prime.

It is a super-2 number, since 2×9895005989² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9895005983) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 147392 + ... + 203750.

It is an arithmetic number, because the mean of its divisors is an integer number (907001480).

Almost surely, 2^9895005989 is an apocalyptic number.

It is an amenable number.

9895005989 is a deficient number, since it is larger than the sum of its proper divisors (989011771).

9895005989 is a wasteful number, since it uses less digits than its factorization.

9895005989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57832 (or 57821 counting only the distinct ones).

The product of its (nonzero) digits is 10497600, while the sum is 62.

The square root of 9895005989 is about 99473.6446954669. The cubic root of 9895005989 is about 2146.8680548876.

The spelling of 9895005989 in words is "nine billion, eight hundred ninety-five million, five thousand, nine hundred eighty-nine".