108770891 has 2 divisors, whose sum is σ = 108770892. Its totient is φ = 108770890.

The previous prime is 108770873. The next prime is 108770911. The reversal of 108770891 is 198077801.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 108770891 - 2²² = 104576587 is a prime.

It is a super-2 number, since 2×108770891² = 23662213457867762, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (108770821) 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, 54385445 + 54385446.

It is an arithmetic number, because the mean of its divisors is an integer number (54385446).

Almost surely, 2^108770891 is an apocalyptic number.

108770891 is a deficient number, since it is larger than the sum of its proper divisors (1).

108770891 is an equidigital number, since it uses as much as digits as its factorization.

108770891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 41.

The square root of 108770891 is about 10429.3284059905. The cubic root of 108770891 is about 477.3506980933.

The spelling of 108770891 in words is "one hundred eight million, seven hundred seventy thousand, eight hundred ninety-one".