108720485 has 4 divisors (see below), whose sum is σ = 130464588. Its totient is φ = 86976384.

The previous prime is 108720481. The next prime is 108720523. The reversal of 108720485 is 584027801.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 34880836 + 73839649 = 5906^2 + 8593^2 .

It is a cyclic number.

It is not a de Polignac number, because 108720485 - 2² = 108720481 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 (108720481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10872044 + ... + 10872053.

It is an arithmetic number, because the mean of its divisors is an integer number (32616147).

Almost surely, 2^108720485 is an apocalyptic number.

It is an amenable number.

108720485 is a deficient number, since it is larger than the sum of its proper divisors (21744103).

108720485 is an equidigital number, since it uses as much as digits as its factorization.

108720485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21744102.

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 108720485 is about 10426.9115753420. The cubic root of 108720485 is about 477.2769496335.

The spelling of 108720485 in words is "one hundred eight million, seven hundred twenty thousand, four hundred eighty-five".