1108659 has 4 divisors (see below), whose sum is σ = 1478216. Its totient is φ = 739104.

The previous prime is 1108633. The next prime is 1108663. The reversal of 1108659 is 9568011.

It is a happy number.

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

It is not a de Polignac number, because 1108659 - 2⁹ = 1108147 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1108609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184774 + ... + 184779.

It is an arithmetic number, because the mean of its divisors is an integer number (369554).

2^1108659 is an apocalyptic number.

1108659 is a deficient number, since it is larger than the sum of its proper divisors (369557).

1108659 is an equidigital number, since it uses as much as digits as its factorization.

1108659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369556.

The product of its (nonzero) digits is 2160, while the sum is 30.

The square root of 1108659 is about 1052.9287725198. The cubic root of 1108659 is about 103.4981679528.

The spelling of 1108659 in words is "one million, one hundred eight thousand, six hundred fifty-nine".