9989433215 has 4 divisors (see below), whose sum is σ = 11987319864. Its totient is φ = 7991546568.

The previous prime is 9989433169. The next prime is 9989433229. The reversal of 9989433215 is 5123349899.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9989433215 - 2¹⁴ = 9989416831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 998943317 + ... + 998943326.

It is an arithmetic number, because the mean of its divisors is an integer number (2996829966).

Almost surely, 2^9989433215 is an apocalyptic number.

9989433215 is a deficient number, since it is larger than the sum of its proper divisors (1997886649).

9989433215 is a wasteful number, since it uses less digits than its factorization.

9989433215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1997886648.

The product of its digits is 2099520, while the sum is 53.

The square root of 9989433215 is about 99947.1521105029. The cubic root of 9989433215 is about 2153.6755743164.

The spelling of 9989433215 in words is "nine billion, nine hundred eighty-nine million, four hundred thirty-three thousand, two hundred fifteen".