1080865 has 4 divisors (see below), whose sum is σ = 1297044. Its totient is φ = 864688.

The previous prime is 1080857. The next prime is 1080899. The reversal of 1080865 is 5680801.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 304704 + 776161 = 552^2 + 881^2 .

It is a cyclic number.

It is not a de Polignac number, because 1080865 - 2³ = 1080857 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108082 + ... + 108091.

It is an arithmetic number, because the mean of its divisors is an integer number (324261).

2^1080865 is an apocalyptic number.

It is an amenable number.

1080865 is a deficient number, since it is larger than the sum of its proper divisors (216179).

1080865 is an equidigital number, since it uses as much as digits as its factorization.

1080865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216178.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 1080865 is about 1039.6465745627. The cubic root of 1080865 is about 102.6259407724.

The spelling of 1080865 in words is "one million, eighty thousand, eight hundred sixty-five".