9989433229 has 2 divisors, whose sum is σ = 9989433230. Its totient is φ = 9989433228.

The previous prime is 9989433169. The next prime is 9989433241. The reversal of 9989433229 is 9223349899.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9770334025 + 219099204 = 98845^2 + 14802^2 .

It is a cyclic number.

It is not a de Polignac number, because 9989433229 - 2¹¹ = 9989431181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9989433299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4994716614 + 4994716615.

It is an arithmetic number, because the mean of its divisors is an integer number (4994716615).

Almost surely, 2^9989433229 is an apocalyptic number.

It is an amenable number.

9989433229 is a deficient number, since it is larger than the sum of its proper divisors (1).

9989433229 is an equidigital number, since it uses as much as digits as its factorization.

9989433229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7558272, while the sum is 58.

The square root of 9989433229 is about 99947.1521805399. The cubic root of 9989433229 is about 2153.6755753226.

The spelling of 9989433229 in words is "nine billion, nine hundred eighty-nine million, four hundred thirty-three thousand, two hundred twenty-nine".