9998205929 has 2 divisors, whose sum is σ = 9998205930. Its totient is φ = 9998205928.

The previous prime is 9998205911. The next prime is 9998205991. The reversal of 9998205929 is 9295028999.

9998205929 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (9998205991) can be obtained adding 9998205929 to its sum of digits (62).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5798517904 + 4199688025 = 76148^2 + 64805^2 .

It is a cyclic number.

It is not a de Polignac number, because 9998205929 - 2¹⁶ = 9998140393 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (9998205229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4999102964 + 4999102965.

It is an arithmetic number, because the mean of its divisors is an integer number (4999102965).

Almost surely, 2^9998205929 is an apocalyptic number.

It is an amenable number.

9998205929 is a deficient number, since it is larger than the sum of its proper divisors (1).

9998205929 is an equidigital number, since it uses as much as digits as its factorization.

9998205929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9447840, while the sum is 62.

The square root of 9998205929 is about 99991.0292426276. The cubic root of 9998205929 is about 2154.3058420329.

The spelling of 9998205929 in words is "nine billion, nine hundred ninety-eight million, two hundred five thousand, nine hundred twenty-nine".