108086609 has 2 divisors, whose sum is σ = 108086610. Its totient is φ = 108086608.

The previous prime is 108086597. The next prime is 108086617. The reversal of 108086609 is 906680801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84125584 + 23961025 = 9172^2 + 4895^2 .

It is a cyclic number.

It is not a de Polignac number, because 108086609 - 2⁴ = 108086593 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 (108086639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54043304 + 54043305.

It is an arithmetic number, because the mean of its divisors is an integer number (54043305).

Almost surely, 2^108086609 is an apocalyptic number.

It is an amenable number.

108086609 is a deficient number, since it is larger than the sum of its proper divisors (1).

108086609 is an equidigital number, since it uses as much as digits as its factorization.

108086609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 108086609 is about 10396.4709877920. The cubic root of 108086609 is about 476.3475808527.

The spelling of 108086609 in words is "one hundred eight million, eighty-six thousand, six hundred nine".