8379634009 has 2 divisors, whose sum is σ = 8379634010. Its totient is φ = 8379634008.

The previous prime is 8379634001. The next prime is 8379634027. The reversal of 8379634009 is 9004369738.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7961635984 + 417998025 = 89228^2 + 20445^2 .

It is a cyclic number.

It is not a de Polignac number, because 8379634009 - 2³ = 8379634001 is a prime.

It is a super-2 number, since 2×8379634009² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8379634001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4189817004 + 4189817005.

It is an arithmetic number, because the mean of its divisors is an integer number (4189817005).

Almost surely, 2^8379634009 is an apocalyptic number.

It is an amenable number.

8379634009 is a deficient number, since it is larger than the sum of its proper divisors (1).

8379634009 is an equidigital number, since it uses as much as digits as its factorization.

8379634009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 979776, while the sum is 49.

The square root of 8379634009 is about 91540.3408831320. The cubic root of 8379634009 is about 2031.1485334101.

The spelling of 8379634009 in words is "eight billion, three hundred seventy-nine million, six hundred thirty-four thousand, nine".