1079209 has 4 divisors (see below), whose sum is σ = 1089220. Its totient is φ = 1069200.

The previous prime is 1079189. The next prime is 1079213. The reversal of 1079209 is 9029701.

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 921600 + 157609 = 960^2 + 397^2 .

It is a cyclic number.

It is not a de Polignac number, because 1079209 - 2⁷ = 1079081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1079269) 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, 4842 + ... + 5059.

It is an arithmetic number, because the mean of its divisors is an integer number (272305).

2^1079209 is an apocalyptic number.

It is an amenable number.

1079209 is a deficient number, since it is larger than the sum of its proper divisors (10011).

1079209 is an equidigital number, since it uses as much as digits as its factorization.

1079209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10010.

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 1079209 is about 1038.8498447803. The cubic root of 1079209 is about 102.5735027020.

It can be divided in two parts, 107 and 9209, that added together give a triangular number (9316 = T₁₃₆).

The spelling of 1079209 in words is "one million, seventy-nine thousand, two hundred nine".