8204448257 has 2 divisors, whose sum is σ = 8204448258. Its totient is φ = 8204448256.

The previous prime is 8204448247. The next prime is 8204448271. The reversal of 8204448257 is 7528444028.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7800599041 + 403849216 = 88321^2 + 20096^2 .

It is a cyclic number.

It is not a de Polignac number, because 8204448257 - 2²⁰ = 8203399681 is a prime.

It is not a weakly prime, because it can be changed into another prime (8204448247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4102224128 + 4102224129.

It is an arithmetic number, because the mean of its divisors is an integer number (4102224129).

Almost surely, 2^8204448257 is an apocalyptic number.

It is an amenable number.

8204448257 is a deficient number, since it is larger than the sum of its proper divisors (1).

8204448257 is an equidigital number, since it uses as much as digits as its factorization.

8204448257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 573440, while the sum is 44.

The square root of 8204448257 is about 90578.4094417649. The cubic root of 8204448257 is about 2016.8942451668.

The spelling of 8204448257 in words is "eight billion, two hundred four million, four hundred forty-eight thousand, two hundred fifty-seven".