9989862417 has 12 divisors (see below), whose sum is σ = 14431968720. Its totient is φ = 6658907928.

The previous prime is 9989862403. The next prime is 9989862419. The reversal of 9989862417 is 7142689899.

It is not a de Polignac number, because 9989862417 - 2⁴ = 9989862401 is a prime.

It is a super-2 number, since 2×9989862417² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9989862419) 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, 17367 + ... + 142412.

It is an arithmetic number, because the mean of its divisors is an integer number (1202664060).

Almost surely, 2^9989862417 is an apocalyptic number.

It is an amenable number.

9989862417 is a deficient number, since it is larger than the sum of its proper divisors (4442106303).

9989862417 is a wasteful number, since it uses less digits than its factorization.

9989862417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166732 (or 166729 counting only the distinct ones).

The product of its digits is 15676416, while the sum is 63.

The square root of 9989862417 is about 99949.2992321607. The cubic root of 9989862417 is about 2153.7064185297.

The spelling of 9989862417 in words is "nine billion, nine hundred eighty-nine million, eight hundred sixty-two thousand, four hundred seventeen".