1106729 has 4 divisors (see below), whose sum is σ = 1191876. Its totient is φ = 1021584.

The previous prime is 1106689. The next prime is 1106741. The reversal of 1106729 is 9276011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9276011 = 37 ⋅250703.

It can be written as a sum of positive squares in 2 ways, for example, as 160000 + 946729 = 400^2 + 973^2 .

It is a cyclic number.

It is not a de Polignac number, because 1106729 - 2²⁰ = 58153 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1106698 and 1106707.

It is not an unprimeable number, because it can be changed into a prime (1106779) 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, 42554 + ... + 42579.

It is an arithmetic number, because the mean of its divisors is an integer number (297969).

2^1106729 is an apocalyptic number.

It is an amenable number.

1106729 is a deficient number, since it is larger than the sum of its proper divisors (85147).

1106729 is an equidigital number, since it uses as much as digits as its factorization.

1106729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85146.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 1106729 is about 1052.0118820622. The cubic root of 1106729 is about 103.4380750874.

The spelling of 1106729 in words is "one million, one hundred six thousand, seven hundred twenty-nine".