1109347 has 2 divisors, whose sum is σ = 1109348. Its totient is φ = 1109346.

The previous prime is 1109327. The next prime is 1109351. The reversal of 1109347 is 7439011.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1109347 - 2⁷ = 1109219 is a prime.

It is not a weakly prime, because it can be changed into another prime (1109327) 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 as a sum of consecutive naturals, namely, 554673 + 554674.

It is an arithmetic number, because the mean of its divisors is an integer number (554674).

2^1109347 is an apocalyptic number.

1109347 is a deficient number, since it is larger than the sum of its proper divisors (1).

1109347 is an equidigital number, since it uses as much as digits as its factorization.

1109347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 1109347 is about 1053.2554296086. The cubic root of 1109347 is about 103.5195727957.

The spelling of 1109347 in words is "one million, one hundred nine thousand, three hundred forty-seven".