9986503 has 2 divisors, whose sum is σ = 9986504. Its totient is φ = 9986502.

The previous prime is 9986489. The next prime is 9986507. The reversal of 9986503 is 3056899.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9986503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9986507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4993251 + 4993252.

It is an arithmetic number, because the mean of its divisors is an integer number (4993252).

Almost surely, 2^9986503 is an apocalyptic number.

9986503 is a deficient number, since it is larger than the sum of its proper divisors (1).

9986503 is an equidigital number, since it uses as much as digits as its factorization.

9986503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 9986503 is about 3160.1428765168. The cubic root of 9986503 is about 215.3464973458.

The spelling of 9986503 in words is "nine million, nine hundred eighty-six thousand, five hundred three".