9843989722 has 16 divisors (see below), whose sum is σ = 16903226880. Its totient is φ = 4211898768.

The previous prime is 9843989693. The next prime is 9843989731. The reversal of 9843989722 is 2279893489.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 570697 + ... + 587692.

It is an arithmetic number, because the mean of its divisors is an integer number (1056451680).

Almost surely, 2^9843989722 is an apocalyptic number.

9843989722 is a deficient number, since it is larger than the sum of its proper divisors (7059237158).

9843989722 is a wasteful number, since it uses less digits than its factorization.

9843989722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1159005.

The product of its digits is 15676416, while the sum is 61.

The square root of 9843989722 is about 99216.8822428925. The cubic root of 9843989722 is about 2143.1721176464.

The spelling of 9843989722 in words is "nine billion, eight hundred forty-three million, nine hundred eighty-nine thousand, seven hundred twenty-two".