108779105 has 8 divisors (see below), whose sum is σ = 131044392. Its totient is φ = 86683648.

The previous prime is 108779101. The next prime is 108779117. The reversal of 108779105 is 501977801.

It can be written as a sum of positive squares in 4 ways, for example, as 14145121 + 94633984 = 3761^2 + 9728^2 .

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 108779105 - 2² = 108779101 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108779101) 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, 41042 + ... + 43611.

It is an arithmetic number, because the mean of its divisors is an integer number (16380549).

Almost surely, 2^108779105 is an apocalyptic number.

It is an amenable number.

108779105 is a deficient number, since it is larger than the sum of its proper divisors (22265287).

108779105 is an equidigital number, since it uses as much as digits as its factorization.

108779105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84915.

The product of its (nonzero) digits is 17640, while the sum is 38.

The square root of 108779105 is about 10429.7221918899. The cubic root of 108779105 is about 477.3627137465.

The spelling of 108779105 in words is "one hundred eight million, seven hundred seventy-nine thousand, one hundred five".