108866709 has 12 divisors (see below), whose sum is σ = 179716576. Its totient is φ = 62209512.

The previous prime is 108866683. The next prime is 108866729. The reversal of 108866709 is 907668801.

It is a happy number.

It is not a de Polignac number, because 108866709 - 2⁵ = 108866677 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 (108866729) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 863959 + ... + 864084.

Almost surely, 2^108866709 is an apocalyptic number.

It is an amenable number.

108866709 is a deficient number, since it is larger than the sum of its proper divisors (70849867).

108866709 is a wasteful number, since it uses less digits than its factorization.

108866709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1728056 (or 1728053 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 108866709 is about 10433.9210750321. The cubic root of 108866709 is about 477.4908255504.

The spelling of 108866709 in words is "one hundred eight million, eight hundred sixty-six thousand, seven hundred nine".