108717638 has 8 divisors (see below), whose sum is σ = 163726920. Its totient is φ = 54142000.

The previous prime is 108717611. The next prime is 108717643. The reversal of 108717638 is 836717801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 108717595 and 108717604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107783 + ... + 108786.

It is an arithmetic number, because the mean of its divisors is an integer number (20465865).

Almost surely, 2^108717638 is an apocalyptic number.

108717638 is a deficient number, since it is larger than the sum of its proper divisors (55009282).

108717638 is a wasteful number, since it uses less digits than its factorization.

108717638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216822.

The product of its (nonzero) digits is 56448, while the sum is 41.

The square root of 108717638 is about 10426.7750527188. The cubic root of 108717638 is about 477.2727835393.

The spelling of 108717638 in words is "one hundred eight million, seven hundred seventeen thousand, six hundred thirty-eight".