9004004221 has 8 divisors (see below), whose sum is σ = 9698316320. Its totient is φ = 8331733872.

The previous prime is 9004004213. The next prime is 9004004249. The reversal of 9004004221 is 1224004009.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9004004221 - 2³ = 9004004213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9004004192 and 9004004201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9004004521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5509590 + ... + 5511223.

It is an arithmetic number, because the mean of its divisors is an integer number (1212289540).

Almost surely, 2^9004004221 is an apocalyptic number.

It is an amenable number.

9004004221 is a deficient number, since it is larger than the sum of its proper divisors (694312099).

9004004221 is a wasteful number, since it uses less digits than its factorization.

9004004221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11020875.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 9004004221 is about 94889.4315558904. The cubic root of 9004004221 is about 2080.3922630662.

The spelling of 9004004221 in words is "nine billion, four million, four thousand, two hundred twenty-one".