108439111 has 6 divisors (see below), whose sum is σ = 119193536. Its totient is φ = 98580900.

The previous prime is 108439069. The next prime is 108439117. The reversal of 108439111 is 111934801.

It is a de Polignac number, because none of the positive numbers 2^k-108439111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 108439111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108439117) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 447975 + ... + 448216.

Almost surely, 2^108439111 is an apocalyptic number.

108439111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

108439111 is a deficient number, since it is larger than the sum of its proper divisors (10754425).

108439111 is an equidigital number, since it uses as much as digits as its factorization.

108439111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896213 (or 896202 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 28.

The square root of 108439111 is about 10413.4101522988. The cubic root of 108439111 is about 476.8648551269.

The spelling of 108439111 in words is "one hundred eight million, four hundred thirty-nine thousand, one hundred eleven".