108779 has 12 divisors (see below), whose sum is σ = 127680. Its totient is φ = 92400.

The previous prime is 108769. The next prime is 108791. The reversal of 108779 is 977801.

It is not a de Polignac number, because 108779 - 2¹² = 104683 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (108709) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3494 + ... + 3524.

It is an arithmetic number, because the mean of its divisors is an integer number (10640).

2¹⁰⁸⁷⁷⁹ is an apocalyptic number.

108779 is a deficient number, since it is larger than the sum of its proper divisors (18901).

108779 is a wasteful number, since it uses less digits than its factorization.

108779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82 (or 71 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 32.

The square root of 108779 is about 329.8166157124. The cubic root of 108779 is about 47.7362560154.

Adding to 108779 its sum of digits (32), we get a triangular number (108811 = T₄₆₆).

The spelling of 108779 in words is "one hundred eight thousand, seven hundred seventy-nine".