9903073 has 2 divisors, whose sum is σ = 9903074. Its totient is φ = 9903072.

The previous prime is 9903071. The next prime is 9903077. The reversal of 9903073 is 3703099.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8596624 + 1306449 = 2932^2 + 1143^2 .

It is a cyclic number.

It is not a de Polignac number, because 9903073 - 2¹ = 9903071 is a prime.

Together with 9903071, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (9903071) 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, 4951536 + 4951537.

It is an arithmetic number, because the mean of its divisors is an integer number (4951537).

Almost surely, 2^9903073 is an apocalyptic number.

It is an amenable number.

9903073 is a deficient number, since it is larger than the sum of its proper divisors (1).

9903073 is an equidigital number, since it uses as much as digits as its factorization.

9903073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5103, while the sum is 31.

The square root of 9903073 is about 3146.9148383774. The cubic root of 9903073 is about 214.7451315572.

The spelling of 9903073 in words is "nine million, nine hundred three thousand, seventy-three".