109808837 has 2 divisors, whose sum is σ = 109808838. Its totient is φ = 109808836.

The previous prime is 109808833. The next prime is 109808843. The reversal of 109808837 is 738808901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99880036 + 9928801 = 9994^2 + 3151^2 .

It is a cyclic number.

It is not a de Polignac number, because 109808837 - 2² = 109808833 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109808833) 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, 54904418 + 54904419.

It is an arithmetic number, because the mean of its divisors is an integer number (54904419).

Almost surely, 2^109808837 is an apocalyptic number.

It is an amenable number.

109808837 is a deficient number, since it is larger than the sum of its proper divisors (1).

109808837 is an equidigital number, since it uses as much as digits as its factorization.

109808837 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 44.

The square root of 109808837 is about 10478.9711804165. The cubic root of 109808837 is about 478.8642665258.

The spelling of 109808837 in words is "one hundred nine million, eight hundred eight thousand, eight hundred thirty-seven".