108718643 has 8 divisors (see below), whose sum is σ = 122428416. Its totient is φ = 95646600.

The previous prime is 108718639. The next prime is 108718657. The reversal of 108718643 is 346817801.

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

It is a cyclic number.

It is not a de Polignac number, because 108718643 - 2² = 108718639 is a prime.

It is a super-2 number, since 2×108718643² = 23639486671522898, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 108718597 and 108718606.

It is not an unprimeable number, because it can be changed into a prime (108718613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159071 + ... + 159752.

It is an arithmetic number, because the mean of its divisors is an integer number (15303552).

Almost surely, 2^108718643 is an apocalyptic number.

108718643 is a deficient number, since it is larger than the sum of its proper divisors (13709773).

108718643 is a wasteful number, since it uses less digits than its factorization.

108718643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318865.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 108718643 is about 10426.8232458405. The cubic root of 108718643 is about 477.2742541921.

The spelling of 108718643 in words is "one hundred eight million, seven hundred eighteen thousand, six hundred forty-three".