8204247427 has 2 divisors, whose sum is σ = 8204247428. Its totient is φ = 8204247426.

The previous prime is 8204247377. The next prime is 8204247437. The reversal of 8204247427 is 7247424028.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8204247427 is a prime.

It is a super-2 number, since 2×8204247427² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8204247427.

It is not a weakly prime, because it can be changed into another prime (8204247437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4102123713 + 4102123714.

It is an arithmetic number, because the mean of its divisors is an integer number (4102123714).

Almost surely, 2^8204247427 is an apocalyptic number.

8204247427 is a deficient number, since it is larger than the sum of its proper divisors (1).

8204247427 is an equidigital number, since it uses as much as digits as its factorization.

8204247427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 200704, while the sum is 40.

The square root of 8204247427 is about 90577.3008374615. The cubic root of 8204247427 is about 2016.8777883959.

The spelling of 8204247427 in words is "eight billion, two hundred four million, two hundred forty-seven thousand, four hundred twenty-seven".