9999575 has 6 divisors (see below), whose sum is σ = 12399504. Its totient is φ = 7999640.

The previous prime is 9999533. The next prime is 9999593. The reversal of 9999575 is 5759999.

9999575 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9999575 - 2⁶ = 9999511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 199967 + ... + 200016.

It is an arithmetic number, because the mean of its divisors is an integer number (2066584).

Almost surely, 2^9999575 is an apocalyptic number.

9999575 is a deficient number, since it is larger than the sum of its proper divisors (2399929).

9999575 is a wasteful number, since it uses less digits than its factorization.

9999575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399993 (or 399988 counting only the distinct ones).

The product of its digits is 1148175, while the sum is 53.

The square root of 9999575 is about 3162.2104610541. The cubic root of 9999575 is about 215.4404168441.

The spelling of 9999575 in words is "nine million, nine hundred ninety-nine thousand, five hundred seventy-five".