108643723 has 4 divisors (see below), whose sum is σ = 110019040. Its totient is φ = 107268408.

The previous prime is 108643663. The next prime is 108643741. The reversal of 108643723 is 327346801.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 108643723 - 2²¹ = 106546571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108643793) 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, 687540 + ... + 687697.

It is an arithmetic number, because the mean of its divisors is an integer number (27504760).

Almost surely, 2^108643723 is an apocalyptic number.

108643723 is a deficient number, since it is larger than the sum of its proper divisors (1375317).

108643723 is an equidigital number, since it uses as much as digits as its factorization.

108643723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1375316.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 108643723 is about 10423.2299696399. The cubic root of 108643723 is about 477.1645962010.

The spelling of 108643723 in words is "one hundred eight million, six hundred forty-three thousand, seven hundred twenty-three".