9990575 has 12 divisors (see below), whose sum is σ = 14158320. Its totient is φ = 6850560.

The previous prime is 9990569. The next prime is 9990653. The reversal of 9990575 is 5750999.

9990575 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 9990575 - 2¹² = 9986479 is a prime.

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 11 ways as a sum of consecutive naturals, for example, 28370 + ... + 28719.

It is an arithmetic number, because the mean of its divisors is an integer number (1179860).

Almost surely, 2^9990575 is an apocalyptic number.

9990575 is a deficient number, since it is larger than the sum of its proper divisors (4167745).

9990575 is a wasteful number, since it uses less digits than its factorization.

9990575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57106 (or 57101 counting only the distinct ones).

The product of its (nonzero) digits is 127575, while the sum is 44.

The square root of 9990575 is about 3160.7870855216. The cubic root of 9990575 is about 215.3757625711.

The spelling of 9990575 in words is "nine million, nine hundred ninety thousand, five hundred seventy-five".