9986943321 has 12 divisors (see below), whose sum is σ = 15052784448. Its totient is φ = 6368485464.

The previous prime is 9986943313. The next prime is 9986943341. The reversal of 9986943321 is 1233496899.

It is not a de Polignac number, because 9986943321 - 2³ = 9986943313 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9986943341) 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, 24122845 + ... + 24123258.

It is an arithmetic number, because the mean of its divisors is an integer number (1254398704).

Almost surely, 2^9986943321 is an apocalyptic number.

It is an amenable number.

9986943321 is a deficient number, since it is larger than the sum of its proper divisors (5065841127).

9986943321 is a wasteful number, since it uses less digits than its factorization.

9986943321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48246132 (or 48246129 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 54.

The square root of 9986943321 is about 99934.6952814687. The cubic root of 9986943321 is about 2153.4966229062.

The spelling of 9986943321 in words is "nine billion, nine hundred eighty-six million, nine hundred forty-three thousand, three hundred twenty-one".