8684287841 has 2 divisors, whose sum is σ = 8684287842. Its totient is φ = 8684287840.

The previous prime is 8684287819. The next prime is 8684287853. The reversal of 8684287841 is 1487824868.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6573804241 + 2110483600 = 81079^2 + 45940^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8684287841 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (8684287441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4342143920 + 4342143921.

It is an arithmetic number, because the mean of its divisors is an integer number (4342143921).

Almost surely, 2^8684287841 is an apocalyptic number.

It is an amenable number.

8684287841 is a deficient number, since it is larger than the sum of its proper divisors (1).

8684287841 is an equidigital number, since it uses as much as digits as its factorization.

8684287841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5505024, while the sum is 56.

The square root of 8684287841 is about 93189.5264554982. The cubic root of 8684287841 is about 2055.4712338420.

The spelling of 8684287841 in words is "eight billion, six hundred eighty-four million, two hundred eighty-seven thousand, eight hundred forty-one".