108193793 has 4 divisors (see below), whose sum is σ = 110832708. Its totient is φ = 105554880.

The previous prime is 108193781. The next prime is 108193807. The reversal of 108193793 is 397391801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 397391801 = 15083 ⋅26347.

It can be written as a sum of positive squares in 2 ways, for example, as 9628609 + 98565184 = 3103^2 + 9928^2 .

It is a cyclic number.

It is not a de Polignac number, because 108193793 - 2⁴ = 108193777 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 2638873 = 108193793 / (1 + 0 + 8 + 1 + 9 + 3 + 7 + 9 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 108193793.

It is not an unprimeable number, because it can be changed into a prime (108193753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1319396 + ... + 1319477.

It is an arithmetic number, because the mean of its divisors is an integer number (27708177).

Almost surely, 2^108193793 is an apocalyptic number.

It is an amenable number.

108193793 is a deficient number, since it is larger than the sum of its proper divisors (2638915).

108193793 is an equidigital number, since it uses as much as digits as its factorization.

108193793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2638914.

The product of its (nonzero) digits is 40824, while the sum is 41.

The square root of 108193793 is about 10401.6245365808. The cubic root of 108193793 is about 476.5049854009.

The spelling of 108193793 in words is "one hundred eight million, one hundred ninety-three thousand, seven hundred ninety-three".