108720073 has 24 divisors (see below), whose sum is σ = 139191264. Its totient is φ = 84666120.

The previous prime is 108720047. The next prime is 108720077. The reversal of 108720073 is 370027801.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-108720073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108720077) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64386 + ... + 66052.

It is an arithmetic number, because the mean of its divisors is an integer number (5799636).

Almost surely, 2^108720073 is an apocalyptic number.

It is an amenable number.

108720073 is a deficient number, since it is larger than the sum of its proper divisors (30471191).

108720073 is an equidigital number, since it uses as much as digits as its factorization.

108720073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1714 (or 1685 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 108720073 is about 10426.8918187540. The cubic root of 108720073 is about 477.2763467470.

Adding to 108720073 its reverse (370027801), we get a palindrome (478747874).

The spelling of 108720073 in words is "one hundred eight million, seven hundred twenty thousand, seventy-three".