9965503 has 2 divisors, whose sum is σ = 9965504. Its totient is φ = 9965502.

The previous prime is 9965497. The next prime is 9965507. The reversal of 9965503 is 3055699.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9965503 is a prime.

It is a super-2 number, since 2×9965503² = 198622500086018, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9965507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4982751 + 4982752.

It is an arithmetic number, because the mean of its divisors is an integer number (4982752).

Almost surely, 2^9965503 is an apocalyptic number.

9965503 is a deficient number, since it is larger than the sum of its proper divisors (1).

9965503 is an equidigital number, since it uses as much as digits as its factorization.

9965503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36450, while the sum is 37.

The square root of 9965503 is about 3156.8184933569. The cubic root of 9965503 is about 215.1954451365.

The spelling of 9965503 in words is "nine million, nine hundred sixty-five thousand, five hundred three".