8117035209 has 12 divisors (see below), whose sum is σ = 11743740996. Its totient is φ = 5402525472.

The previous prime is 8117035207. The next prime is 8117035249. The reversal of 8117035209 is 9025307118.

It can be written as a sum of positive squares in 2 ways, for example, as 1429066809 + 6687968400 = 37803^2 + 81780^2 .

It is not a de Polignac number, because 8117035209 - 2¹ = 8117035207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8117035207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 730122 + ... + 741155.

It is an arithmetic number, because the mean of its divisors is an integer number (978645083).

Almost surely, 2^8117035209 is an apocalyptic number.

It is an amenable number.

8117035209 is a deficient number, since it is larger than the sum of its proper divisors (3626705787).

8117035209 is a wasteful number, since it uses less digits than its factorization.

8117035209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1471896 (or 1471893 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 8117035209 is about 90094.5903425949. The cubic root of 8117035209 is about 2009.7057570320.

The spelling of 8117035209 in words is "eight billion, one hundred seventeen million, thirty-five thousand, two hundred nine".