9956603 has 4 divisors (see below), whose sum is σ = 10119888. Its totient is φ = 9793320.

The previous prime is 9956593. The next prime is 9956623. The reversal of 9956603 is 3066599.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9956603 - 2⁴ = 9956587 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9956623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81551 + ... + 81672.

It is an arithmetic number, because the mean of its divisors is an integer number (2529972).

Almost surely, 2^9956603 is an apocalyptic number.

9956603 is a deficient number, since it is larger than the sum of its proper divisors (163285).

9956603 is a wasteful number, since it uses less digits than its factorization.

9956603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163284.

The product of its (nonzero) digits is 43740, while the sum is 38.

The square root of 9956603 is about 3155.4085313949. The cubic root of 9956603 is about 215.1313637450.

The spelling of 9956603 in words is "nine million, nine hundred fifty-six thousand, six hundred three".