9975229 has 4 divisors (see below), whose sum is σ = 10882080. Its totient is φ = 9068380.

The previous prime is 9975223. The next prime is 9975253. The reversal of 9975229 is 9225799.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9975229 - 2⁵ = 9975197 is a prime.

It is a d-powerful number, because it can be written as 9² + 9² + 7⁸ + 5⁶ + 2⁸ + 2²² + 9² .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9975223) 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 3 ways as a sum of consecutive naturals, for example, 453409 + ... + 453430.

It is an arithmetic number, because the mean of its divisors is an integer number (2720520).

Almost surely, 2^9975229 is an apocalyptic number.

It is an amenable number.

9975229 is a deficient number, since it is larger than the sum of its proper divisors (906851).

9975229 is a wasteful number, since it uses less digits than its factorization.

9975229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906850.

The product of its digits is 102060, while the sum is 43.

The square root of 9975229 is about 3158.3585926870. The cubic root of 9975229 is about 215.2654302432.

It can be divided in two parts, 997 and 5229, that added together give a palindrome (6226).

The spelling of 9975229 in words is "nine million, nine hundred seventy-five thousand, two hundred twenty-nine".