8368834009 has 2 divisors, whose sum is σ = 8368834010. Its totient is φ = 8368834008.

The previous prime is 8368834003. The next prime is 8368834039. The reversal of 8368834009 is 9004388638.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8136942025 + 231891984 = 90205^2 + 15228^2 .

It is a cyclic number.

It is not a de Polignac number, because 8368834009 - 2¹⁵ = 8368801241 is a prime.

It is not a weakly prime, because it can be changed into another prime (8368834003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4184417004 + 4184417005.

It is an arithmetic number, because the mean of its divisors is an integer number (4184417005).

Almost surely, 2^8368834009 is an apocalyptic number.

It is an amenable number.

8368834009 is a deficient number, since it is larger than the sum of its proper divisors (1).

8368834009 is an equidigital number, since it uses as much as digits as its factorization.

8368834009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 995328, while the sum is 49.

The square root of 8368834009 is about 91481.3314780672. The cubic root of 8368834009 is about 2030.2755503715.

The spelling of 8368834009 in words is "eight billion, three hundred sixty-eight million, eight hundred thirty-four thousand, nine".