108634817 has 2 divisors, whose sum is σ = 108634818. Its totient is φ = 108634816.

The previous prime is 108634793. The next prime is 108634891. The reversal of 108634817 is 718436801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108139201 + 495616 = 10399^2 + 704^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108634817 is a prime.

It is not a weakly prime, because it can be changed into another prime (108634217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54317408 + 54317409.

It is an arithmetic number, because the mean of its divisors is an integer number (54317409).

Almost surely, 2^108634817 is an apocalyptic number.

It is an amenable number.

108634817 is a deficient number, since it is larger than the sum of its proper divisors (1).

108634817 is an equidigital number, since it uses as much as digits as its factorization.

108634817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 108634817 is about 10422.8027420651. The cubic root of 108634817 is about 477.1515574234.

The spelling of 108634817 in words is "one hundred eight million, six hundred thirty-four thousand, eight hundred seventeen".