108708391 has 8 divisors (see below), whose sum is σ = 118742400. Its totient is φ = 98699640.

The previous prime is 108708377. The next prime is 108708401. The reversal of 108708391 is 193807801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 108708391 - 2⁵ = 108708359 is a prime.

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 108708391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108708091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3340 + ... + 15118.

It is an arithmetic number, because the mean of its divisors is an integer number (14842800).

Almost surely, 2^108708391 is an apocalyptic number.

108708391 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

108708391 is a deficient number, since it is larger than the sum of its proper divisors (10034009).

108708391 is a wasteful number, since it uses less digits than its factorization.

108708391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12629.

The product of its (nonzero) digits is 12096, while the sum is 37.

The square root of 108708391 is about 10426.3316175921. The cubic root of 108708391 is about 477.2592516456.

It can be divided in two parts, 10 and 8708391, that added together give a square (8708401 = 2951²).

The spelling of 108708391 in words is "one hundred eight million, seven hundred eight thousand, three hundred ninety-one".