8204004217 has 2 divisors, whose sum is σ = 8204004218. Its totient is φ = 8204004216.

The previous prime is 8204004199. The next prime is 8204004223. The reversal of 8204004217 is 7124004028.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8174148921 + 29855296 = 90411^2 + 5464^2 .

It is a cyclic number.

It is not a de Polignac number, because 8204004217 - 2⁷ = 8204004089 is a prime.

It is not a weakly prime, because it can be changed into another prime (8204004227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4102002108 + 4102002109.

It is an arithmetic number, because the mean of its divisors is an integer number (4102002109).

Almost surely, 2^8204004217 is an apocalyptic number.

It is an amenable number.

8204004217 is a deficient number, since it is larger than the sum of its proper divisors (1).

8204004217 is an equidigital number, since it uses as much as digits as its factorization.

8204004217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 8204004217 is about 90575.9582726012. The cubic root of 8204004217 is about 2016.8578584877.

The spelling of 8204004217 in words is "eight billion, two hundred four million, four thousand, two hundred seventeen".