108609797 has 2 divisors, whose sum is σ = 108609798. Its totient is φ = 108609796.

The previous prime is 108609791. The next prime is 108609811. The reversal of 108609797 is 797906801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108139201 + 470596 = 10399^2 + 686^2 .

It is a cyclic number.

It is not a de Polignac number, because 108609797 - 2²⁴ = 91832581 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108609791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54304898 + 54304899.

It is an arithmetic number, because the mean of its divisors is an integer number (54304899).

Almost surely, 2^108609797 is an apocalyptic number.

It is an amenable number.

108609797 is a deficient number, since it is larger than the sum of its proper divisors (1).

108609797 is an equidigital number, since it uses as much as digits as its factorization.

108609797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 190512, while the sum is 47.

The square root of 108609797 is about 10421.6024199736. The cubic root of 108609797 is about 477.1149232241.

The spelling of 108609797 in words is "one hundred eight million, six hundred nine thousand, seven hundred ninety-seven".