8434970909 has 2 divisors, whose sum is σ = 8434970910. Its totient is φ = 8434970908.

The previous prime is 8434970891. The next prime is 8434970917. The reversal of 8434970909 is 9090794348.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6221738884 + 2213232025 = 78878^2 + 47045^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8434970909 is a prime.

It is a super-2 number, since 2×8434970909² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8434970809) 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, 4217485454 + 4217485455.

It is an arithmetic number, because the mean of its divisors is an integer number (4217485455).

Almost surely, 2^8434970909 is an apocalyptic number.

It is an amenable number.

8434970909 is a deficient number, since it is larger than the sum of its proper divisors (1).

8434970909 is an equidigital number, since it uses as much as digits as its factorization.

8434970909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1959552, while the sum is 53.

The square root of 8434970909 is about 91842.0976949024. The cubic root of 8434970909 is about 2035.6097844404.

The spelling of 8434970909 in words is "eight billion, four hundred thirty-four million, nine hundred seventy thousand, nine hundred nine".