8384684137 has 4 divisors (see below), whose sum is σ = 8384933700. Its totient is φ = 8384434576.

The previous prime is 8384684129. The next prime is 8384684141. The reversal of 8384684137 is 7314864838.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4254822441 + 4129861696 = 65229^2 + 64264^2 .

It is a cyclic number.

It is not a de Polignac number, because 8384684137 - 2³ = 8384684129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8384684837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64762 + ... + 144787.

It is an arithmetic number, because the mean of its divisors is an integer number (2096233425).

Almost surely, 2^8384684137 is an apocalyptic number.

It is an amenable number.

8384684137 is a deficient number, since it is larger than the sum of its proper divisors (249563).

8384684137 is a wasteful number, since it uses less digits than its factorization.

8384684137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249562.

The product of its digits is 3096576, while the sum is 52.

The square root of 8384684137 is about 91567.9208948199. The cubic root of 8384684137 is about 2031.5564867936.

The spelling of 8384684137 in words is "eight billion, three hundred eighty-four million, six hundred eighty-four thousand, one hundred thirty-seven".