108640717 has 8 divisors (see below), whose sum is σ = 110332224. Its totient is φ = 106954848.

The previous prime is 108640711. The next prime is 108640733. The reversal of 108640717 is 717046801.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108640717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108640711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53238 + ... + 55240.

It is an arithmetic number, because the mean of its divisors is an integer number (13791528).

Almost surely, 2^108640717 is an apocalyptic number.

It is an amenable number.

108640717 is a deficient number, since it is larger than the sum of its proper divisors (1691507).

108640717 is an equidigital number, since it uses as much as digits as its factorization.

108640717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2819.

The product of its (nonzero) digits is 9408, while the sum is 34.

The square root of 108640717 is about 10423.0857714978. The cubic root of 108640717 is about 477.1601953638.

The spelling of 108640717 in words is "one hundred eight million, six hundred forty thousand, seven hundred seventeen".