109686887 has 2 divisors, whose sum is σ = 109686888. Its totient is φ = 109686886.

The previous prime is 109686881. The next prime is 109686911. The reversal of 109686887 is 788686901.

It is a weak prime.

It is an emirp because it is prime and its reverse (788686901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 109686887 - 2⁶ = 109686823 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 (109686881) 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, 54843443 + 54843444.

It is an arithmetic number, because the mean of its divisors is an integer number (54843444).

Almost surely, 2^109686887 is an apocalyptic number.

109686887 is a deficient number, since it is larger than the sum of its proper divisors (1).

109686887 is an equidigital number, since it uses as much as digits as its factorization.

109686887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1161216, while the sum is 53.

The square root of 109686887 is about 10473.1507675580. The cubic root of 109686887 is about 478.6869306806.

The spelling of 109686887 in words is "one hundred nine million, six hundred eighty-six thousand, eight hundred eighty-seven".