8208394049 has 2 divisors, whose sum is σ = 8208394050. Its totient is φ = 8208394048.

The previous prime is 8208394039. The next prime is 8208394097. The reversal of 8208394049 is 9404938028.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5929000000 + 2279394049 = 77000^2 + 47743^2 .

It is a cyclic number.

It is not a de Polignac number, because 8208394049 - 2⁸ = 8208393793 is a prime.

It is a super-2 number, since 2×8208394049² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8208393994 and 8208394012.

It is not a weakly prime, because it can be changed into another prime (8208394039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4104197024 + 4104197025.

It is an arithmetic number, because the mean of its divisors is an integer number (4104197025).

Almost surely, 2^8208394049 is an apocalyptic number.

It is an amenable number.

8208394049 is a deficient number, since it is larger than the sum of its proper divisors (1).

8208394049 is an equidigital number, since it uses as much as digits as its factorization.

8208394049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 497664, while the sum is 47.

The square root of 8208394049 is about 90600.1879081937. The cubic root of 8208394049 is about 2017.2175238515.

The spelling of 8208394049 in words is "eight billion, two hundred eight million, three hundred ninety-four thousand, forty-nine".