9004875921 has 8 divisors (see below), whose sum is σ = 13340556960. Its totient is φ = 6003250596.

The previous prime is 9004875899. The next prime is 9004875931. The reversal of 9004875921 is 1295784009.

It is not a de Polignac number, because 9004875921 - 2⁶ = 9004875857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9004875931) 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 7 ways as a sum of consecutive naturals, for example, 166756935 + ... + 166756988.

It is an arithmetic number, because the mean of its divisors is an integer number (1667569620).

Almost surely, 2^9004875921 is an apocalyptic number.

It is an amenable number.

9004875921 is a deficient number, since it is larger than the sum of its proper divisors (4335681039).

9004875921 is a wasteful number, since it uses less digits than its factorization.

9004875921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333513932 (or 333513926 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The square root of 9004875921 is about 94894.0246854353. The cubic root of 9004875921 is about 2080.4593968796.

The spelling of 9004875921 in words is "nine billion, four million, eight hundred seventy-five thousand, nine hundred twenty-one".