108686087 has 2 divisors, whose sum is σ = 108686088. Its totient is φ = 108686086.

The previous prime is 108686077. The next prime is 108686089. The reversal of 108686087 is 780686801.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108686087 is a prime.

Together with 108686089, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108686089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54343043 + 54343044.

It is an arithmetic number, because the mean of its divisors is an integer number (54343044).

Almost surely, 2^108686087 is an apocalyptic number.

108686087 is a deficient number, since it is larger than the sum of its proper divisors (1).

108686087 is an equidigital number, since it uses as much as digits as its factorization.

108686087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129024, while the sum is 44.

The square root of 108686087 is about 10425.2619631355. The cubic root of 108686087 is about 477.2266092147.

The spelling of 108686087 in words is "one hundred eight million, six hundred eighty-six thousand, eighty-seven".