9983829221 has 4 divisors (see below), whose sum is σ = 9985679052. Its totient is φ = 9981979392.

The previous prime is 9983829211. The next prime is 9983829227. The reversal of 9983829221 is 1229283899.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1229283899 = 1229 ⋅1000231.

It can be written as a sum of positive squares in 2 ways, for example, as 983512321 + 9000316900 = 31361^2 + 94870^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9983829221 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 (9983829227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 916796 + ... + 927621.

It is an arithmetic number, because the mean of its divisors is an integer number (2496419763).

Almost surely, 2^9983829221 is an apocalyptic number.

It is an amenable number.

9983829221 is a deficient number, since it is larger than the sum of its proper divisors (1849831).

9983829221 is a wasteful number, since it uses less digits than its factorization.

9983829221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1849830.

The product of its digits is 1119744, while the sum is 53.

The square root of 9983829221 is about 99919.1133917831. The cubic root of 9983829221 is about 2153.2727672587.

The spelling of 9983829221 in words is "nine billion, nine hundred eighty-three million, eight hundred twenty-nine thousand, two hundred twenty-one".