9999800003 has 2 divisors, whose sum is σ = 9999800004. Its totient is φ = 9999800002.

The previous prime is 9999799951. The next prime is 9999800023. The reversal of 9999800003 is 3000089999.

It is a happy number.

9999800003 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9999800003 - 2¹⁸ = 9999537859 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (9999800023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4999900001 + 4999900002.

It is an arithmetic number, because the mean of its divisors is an integer number (4999900002).

Almost surely, 2^9999800003 is an apocalyptic number.

9999800003 is a deficient number, since it is larger than the sum of its proper divisors (1).

9999800003 is an equidigital number, since it uses as much as digits as its factorization.

9999800003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 157464, while the sum is 47.

The square root of 9999800003 is about 99999.0000100001. Note that the first 4 decimals coincide. The cubic root of 9999800003 is about 2154.4203272536.

It can be divided in two parts, 9999 and 800003, that multiplied together give a palindrome (7999229997).

The spelling of 9999800003 in words is "nine billion, nine hundred ninety-nine million, eight hundred thousand, three".