9799903 has 2 divisors, whose sum is σ = 9799904. Its totient is φ = 9799902.

The previous prime is 9799897. The next prime is 9799913. The reversal of 9799903 is 3099979.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9799903 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9799913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4899951 + 4899952.

It is an arithmetic number, because the mean of its divisors is an integer number (4899952).

Almost surely, 2^9799903 is an apocalyptic number.

9799903 is a deficient number, since it is larger than the sum of its proper divisors (1).

9799903 is an equidigital number, since it uses as much as digits as its factorization.

9799903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 137781, while the sum is 46.

The square root of 9799903 is about 3130.4796757047. The cubic root of 9799903 is about 213.9967900645.

It can be divided in two parts, 97 and 99903, that added together give a 5-th power (100000 = 10⁵).

The spelling of 9799903 in words is "nine million, seven hundred ninety-nine thousand, nine hundred three".