1108665 has 24 divisors (see below), whose sum is σ = 1954368. Its totient is φ = 581280.

The previous prime is 1108663. The next prime is 1108691. The reversal of 1108665 is 5668011.

It is not a de Polignac number, because 1108665 - 2¹ = 1108663 is a prime.

1108665 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1108663) 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 23 ways as a sum of consecutive naturals, for example, 3022 + ... + 3368.

It is an arithmetic number, because the mean of its divisors is an integer number (81432).

2^1108665 is an apocalyptic number.

1108665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1108665 is a deficient number, since it is larger than the sum of its proper divisors (845703).

1108665 is a wasteful number, since it uses less digits than its factorization.

1108665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429 (or 426 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 1108665 is about 1052.9316217115. The cubic root of 1108665 is about 103.4983546612.

The spelling of 1108665 in words is "one million, one hundred eight thousand, six hundred sixty-five".