9909653 has 12 divisors (see below), whose sum is σ = 10821888. Its totient is φ = 9069840.

The previous prime is 9909649. The next prime is 9909667. The reversal of 9909653 is 3569099.

It is a happy number.

It is not a de Polignac number, because 9909653 - 2² = 9909649 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 9909653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9909253) 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 in 11 ways as a sum of consecutive naturals, for example, 32126 + ... + 32432.

It is an arithmetic number, because the mean of its divisors is an integer number (901824).

Almost surely, 2^9909653 is an apocalyptic number.

It is an amenable number.

9909653 is a deficient number, since it is larger than the sum of its proper divisors (912235).

9909653 is a wasteful number, since it uses less digits than its factorization.

9909653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524 (or 511 counting only the distinct ones).

The product of its (nonzero) digits is 65610, while the sum is 41.

The square root of 9909653 is about 3147.9601331656. The cubic root of 9909653 is about 214.7926827946.

The spelling of 9909653 in words is "nine million, nine hundred nine thousand, six hundred fifty-three".