8973804921 has 16 divisors (see below), whose sum is σ = 12387332160. Its totient is φ = 5771729600.

The previous prime is 8973804907. The next prime is 8973804947. The reversal of 8973804921 is 1294083798.

8973804921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 8973804921 - 2¹⁰ = 8973803897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8973802921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73546 + ... + 152828.

It is an arithmetic number, because the mean of its divisors is an integer number (774208260).

Almost surely, 2^8973804921 is an apocalyptic number.

It is an amenable number.

8973804921 is a deficient number, since it is larger than the sum of its proper divisors (3413527239).

8973804921 is a wasteful number, since it uses less digits than its factorization.

8973804921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80616.

The product of its (nonzero) digits is 870912, while the sum is 51.

The square root of 8973804921 is about 94730.1690117779. The cubic root of 8973804921 is about 2078.0637893746.

The spelling of 8973804921 in words is "eight billion, nine hundred seventy-three million, eight hundred four thousand, nine hundred twenty-one".