108344809 has 2 divisors, whose sum is σ = 108344810. Its totient is φ = 108344808.

The previous prime is 108344807. The next prime is 108344833. The reversal of 108344809 is 908443801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104101209 + 4243600 = 10203^2 + 2060^2 .

It is a cyclic number.

It is not a de Polignac number, because 108344809 - 2¹ = 108344807 is a prime.

Together with 108344807, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (108344807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54172404 + 54172405.

It is an arithmetic number, because the mean of its divisors is an integer number (54172405).

Almost surely, 2^108344809 is an apocalyptic number.

It is an amenable number.

108344809 is a deficient number, since it is larger than the sum of its proper divisors (1).

108344809 is an equidigital number, since it uses as much as digits as its factorization.

108344809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 108344809 is about 10408.8812559276. The cubic root of 108344809 is about 476.7265829020.

The spelling of 108344809 in words is "one hundred eight million, three hundred forty-four thousand, eight hundred nine".