8385109 has 2 divisors, whose sum is σ = 8385110. Its totient is φ = 8385108.

The previous prime is 8385107. The next prime is 8385119. The reversal of 8385109 is 9015838.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7535025 + 850084 = 2745^2 + 922^2 .

It is a cyclic number.

It is not a de Polignac number, because 8385109 - 2¹ = 8385107 is a prime.

Together with 8385107, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8385101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4192554 + 4192555.

It is an arithmetic number, because the mean of its divisors is an integer number (4192555).

Almost surely, 2^8385109 is an apocalyptic number.

It is an amenable number.

8385109 is a deficient number, since it is larger than the sum of its proper divisors (1).

8385109 is an equidigital number, since it uses as much as digits as its factorization.

8385109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 8385109 is about 2895.7052681514. The cubic root of 8385109 is about 203.1590800096.

The spelling of 8385109 in words is "eight million, three hundred eighty-five thousand, one hundred nine".