1108708891 has 2 divisors, whose sum is σ = 1108708892. Its totient is φ = 1108708890.

The previous prime is 1108708883. The next prime is 1108708901. The reversal of 1108708891 is 1988078011.

It is a weak prime.

It is an emirp because it is prime and its reverse (1988078011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1108708891 - 2³ = 1108708883 is a prime.

It is not a weakly prime, because it can be changed into another prime (1108708801) 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, 554354445 + 554354446.

It is an arithmetic number, because the mean of its divisors is an integer number (554354446).

Almost surely, 2^1108708891 is an apocalyptic number.

1108708891 is a deficient number, since it is larger than the sum of its proper divisors (1).

1108708891 is an equidigital number, since it uses as much as digits as its factorization.

1108708891 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 43.

The square root of 1108708891 is about 33297.2805346022. The cubic root of 1108708891 is about 1034.9972044391.

The spelling of 1108708891 in words is "one billion, one hundred eight million, seven hundred eight thousand, eight hundred ninety-one".