1109079 has 8 divisors (see below), whose sum is σ = 1643120. Its totient is φ = 739368.

The previous prime is 1109057. The next prime is 1109113. The reversal of 1109079 is 9709011.

It is not a de Polignac number, because 1109079 - 2⁸ = 1108823 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 41077 = 1109079 / (1 + 1 + 0 + 9 + 0 + 7 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1109579) 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 7 ways as a sum of consecutive naturals, for example, 20512 + ... + 20565.

It is an arithmetic number, because the mean of its divisors is an integer number (205390).

2^1109079 is an apocalyptic number.

1109079 is a deficient number, since it is larger than the sum of its proper divisors (534041).

1109079 is an equidigital number, since it uses as much as digits as its factorization.

1109079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41086 (or 41080 counting only the distinct ones).

The product of its (nonzero) digits is 567, while the sum is 27.

The square root of 1109079 is about 1053.1281973245. The cubic root of 1109079 is about 103.5112359152.

The spelling of 1109079 in words is "one million, one hundred nine thousand, seventy-nine".