9975573 has 6 divisors (see below), whose sum is σ = 14409174. Its totient is φ = 6650376.

The previous prime is 9975569. The next prime is 9975593. The reversal of 9975573 is 3755799.

It is a happy number.

9975573 is a `hidden beast` number, since 9 + 9 + 75 + 573 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5489649 + 4485924 = 2343^2 + 2118^2 .

It is not a de Polignac number, because 9975573 - 2² = 9975569 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9975593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 554190 + ... + 554207.

It is an arithmetic number, because the mean of its divisors is an integer number (2401529).

Almost surely, 2^9975573 is an apocalyptic number.

It is an amenable number.

9975573 is a deficient number, since it is larger than the sum of its proper divisors (4433601).

9975573 is a wasteful number, since it uses less digits than its factorization.

9975573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1108403 (or 1108400 counting only the distinct ones).

The product of its digits is 297675, while the sum is 45.

The square root of 9975573 is about 3158.4130508849. The cubic root of 9975573 is about 215.2679047213.

The spelling of 9975573 in words is "nine million, nine hundred seventy-five thousand, five hundred seventy-three".