9997603 has 16 divisors (see below), whose sum is σ = 12559104. Its totient is φ = 7731360.

The previous prime is 9997601. The next prime is 9997613. The reversal of 9997603 is 3067999.

9997603 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9997603 - 2¹ = 9997601 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9997603.

It is not an unprimeable number, because it can be changed into a prime (9997601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11676 + ... + 12502.

It is an arithmetic number, because the mean of its divisors is an integer number (784944).

Almost surely, 2^9997603 is an apocalyptic number.

9997603 is a deficient number, since it is larger than the sum of its proper divisors (2561501).

9997603 is a wasteful number, since it uses less digits than its factorization.

9997603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002.

The product of its (nonzero) digits is 91854, while the sum is 43.

The square root of 9997603 is about 3161.8986384766. The cubic root of 9997603 is about 215.4262536944.

The spelling of 9997603 in words is "nine million, nine hundred ninety-seven thousand, six hundred three".