9906575 has 18 divisors (see below), whose sum is σ = 14291496. Its totient is φ = 6792240.

The previous prime is 9906569. The next prime is 9906593. The reversal of 9906575 is 5756099.

It is not a de Polignac number, because 9906575 - 2⁶ = 9906511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 2819 + ... + 5268.

It is an arithmetic number, because the mean of its divisors is an integer number (793972).

Almost surely, 2^9906575 is an apocalyptic number.

9906575 is a deficient number, since it is larger than the sum of its proper divisors (4384921).

9906575 is a wasteful number, since it uses less digits than its factorization.

9906575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8111 (or 8099 counting only the distinct ones).

The product of its (nonzero) digits is 85050, while the sum is 41.

The square root of 9906575 is about 3147.4712071757. The cubic root of 9906575 is about 214.7704418429.

The spelling of 9906575 in words is "nine million, nine hundred six thousand, five hundred seventy-five".