108609807 has 4 divisors (see below), whose sum is σ = 144813080. Its totient is φ = 72406536.

The previous prime is 108609797. The next prime is 108609811. The reversal of 108609807 is 708906801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 708906801 = 3 ⋅236302267.

It is not a de Polignac number, because 108609807 - 2⁴ = 108609791 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 (108609817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18101632 + ... + 18101637.

It is an arithmetic number, because the mean of its divisors is an integer number (36203270).

Almost surely, 2^108609807 is an apocalyptic number.

108609807 is a deficient number, since it is larger than the sum of its proper divisors (36203273).

108609807 is an equidigital number, since it uses as much as digits as its factorization.

108609807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36203272.

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 108609807 is about 10421.6028997463. The cubic root of 108609807 is about 477.1149378672.

The spelling of 108609807 in words is "one hundred eight million, six hundred nine thousand, eight hundred seven".