108778841 has 2 divisors, whose sum is σ = 108778842. Its totient is φ = 108778840.

The previous prime is 108778823. The next prime is 108778861. The reversal of 108778841 is 148877801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69139225 + 39639616 = 8315^2 + 6296^2 .

It is an emirp because it is prime and its reverse (148877801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 108778841 - 2²² = 104584537 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 108778792 and 108778801.

It is not a weakly prime, because it can be changed into another prime (108778861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54389420 + 54389421.

It is an arithmetic number, because the mean of its divisors is an integer number (54389421).

Almost surely, 2^108778841 is an apocalyptic number.

It is an amenable number.

108778841 is a deficient number, since it is larger than the sum of its proper divisors (1).

108778841 is an equidigital number, since it uses as much as digits as its factorization.

108778841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 100352, while the sum is 44.

The square root of 108778841 is about 10429.7095357445. The cubic root of 108778841 is about 477.3623275699.

The spelling of 108778841 in words is "one hundred eight million, seven hundred seventy-eight thousand, eight hundred forty-one".