1080709 has 4 divisors (see below), whose sum is σ = 1235104. Its totient is φ = 926316.

The previous prime is 1080683. The next prime is 1080713. The reversal of 1080709 is 9070801.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9070801 = 643 ⋅14107.

It is a cyclic number.

It is not a de Polignac number, because 1080709 - 2¹³ = 1072517 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1080749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77187 + ... + 77200.

It is an arithmetic number, because the mean of its divisors is an integer number (308776).

2^1080709 is an apocalyptic number.

It is an amenable number.

1080709 is a deficient number, since it is larger than the sum of its proper divisors (154395).

1080709 is an equidigital number, since it uses as much as digits as its factorization.

1080709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154394.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 1080709 is about 1039.5715463594. The cubic root of 1080709 is about 102.6210032403.

The spelling of 1080709 in words is "one million, eighty thousand, seven hundred nine".