8470170809 has 2 divisors, whose sum is σ = 8470170810. Its totient is φ = 8470170808.

The previous prime is 8470170767. The next prime is 8470170811. The reversal of 8470170809 is 9080710748.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7827294784 + 642876025 = 88472^2 + 25355^2 .

It is a cyclic number.

It is not a de Polignac number, because 8470170809 - 2²⁴ = 8453393593 is a prime.

Together with 8470170811, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8470170809.

It is not a weakly prime, because it can be changed into another prime (8470170829) 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, 4235085404 + 4235085405.

It is an arithmetic number, because the mean of its divisors is an integer number (4235085405).

Almost surely, 2^8470170809 is an apocalyptic number.

It is an amenable number.

8470170809 is a deficient number, since it is larger than the sum of its proper divisors (1).

8470170809 is an equidigital number, since it uses as much as digits as its factorization.

8470170809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112896, while the sum is 44.

The square root of 8470170809 is about 92033.5308949950. The cubic root of 8470170809 is about 2038.4374495742.

The spelling of 8470170809 in words is "eight billion, four hundred seventy million, one hundred seventy thousand, eight hundred nine".