8379928369 has 2 divisors, whose sum is σ = 8379928370. Its totient is φ = 8379928368.

The previous prime is 8379928357. The next prime is 8379928409. The reversal of 8379928369 is 9638299738.

It is a happy number.

8379928369 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5793188769 + 2586739600 = 76113^2 + 50860^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8379928369 is a prime.

It is a super-2 number, since 2×8379928369² (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 8379928369.

It is not a weakly prime, because it can be changed into another prime (8379926369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4189964184 + 4189964185.

It is an arithmetic number, because the mean of its divisors is an integer number (4189964185).

Almost surely, 2^8379928369 is an apocalyptic number.

It is an amenable number.

8379928369 is a deficient number, since it is larger than the sum of its proper divisors (1).

8379928369 is an equidigital number, since it uses as much as digits as its factorization.

8379928369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35271936, while the sum is 64.

The square root of 8379928369 is about 91541.9486847423. The cubic root of 8379928369 is about 2031.1723165444.

The spelling of 8379928369 in words is "eight billion, three hundred seventy-nine million, nine hundred twenty-eight thousand, three hundred sixty-nine".