108400791 has 4 divisors (see below), whose sum is σ = 144534392. Its totient is φ = 72267192.

The previous prime is 108400781. The next prime is 108400793. The reversal of 108400791 is 197004801.

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

It is not a de Polignac number, because 108400791 - 2¹⁵ = 108368023 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 (108400793) 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, 18066796 + ... + 18066801.

It is an arithmetic number, because the mean of its divisors is an integer number (36133598).

Almost surely, 2^108400791 is an apocalyptic number.

108400791 is a deficient number, since it is larger than the sum of its proper divisors (36133601).

108400791 is an equidigital number, since it uses as much as digits as its factorization.

108400791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36133600.

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 108400791 is about 10411.5700545115. The cubic root of 108400791 is about 476.8086773205.

The spelling of 108400791 in words is "one hundred eight million, four hundred thousand, seven hundred ninety-one".