109730891 has 2 divisors, whose sum is σ = 109730892. Its totient is φ = 109730890.

The previous prime is 109730879. The next prime is 109730893. The reversal of 109730891 is 198037901.

It is a strong prime.

It is an emirp because it is prime and its reverse (198037901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 109730891 - 2⁶ = 109730827 is a prime.

Together with 109730893, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (109730893) 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, 54865445 + 54865446.

It is an arithmetic number, because the mean of its divisors is an integer number (54865446).

Almost surely, 2^109730891 is an apocalyptic number.

109730891 is a deficient number, since it is larger than the sum of its proper divisors (1).

109730891 is an equidigital number, since it uses as much as digits as its factorization.

109730891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 38.

The square root of 109730891 is about 10475.2513573661. The cubic root of 109730891 is about 478.7509350603.

The spelling of 109730891 in words is "one hundred nine million, seven hundred thirty thousand, eight hundred ninety-one".