8629379009 has 2 divisors, whose sum is σ = 8629379010. Its totient is φ = 8629379008.

The previous prime is 8629378973. The next prime is 8629379021. The reversal of 8629379009 is 9009739268.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5948728384 + 2680650625 = 77128^2 + 51775^2 .

It is a cyclic number.

It is not a de Polignac number, because 8629379009 - 2³² = 4334411713 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 (8629379029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4314689504 + 4314689505.

It is an arithmetic number, because the mean of its divisors is an integer number (4314689505).

Almost surely, 2^8629379009 is an apocalyptic number.

It is an amenable number.

8629379009 is a deficient number, since it is larger than the sum of its proper divisors (1).

8629379009 is an equidigital number, since it uses as much as digits as its factorization.

8629379009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1469664, while the sum is 53.

The square root of 8629379009 is about 92894.4509053151. The cubic root of 8629379009 is about 2051.1299746163.

The spelling of 8629379009 in words is "eight billion, six hundred twenty-nine million, three hundred seventy-nine thousand, nine".