1090717 has 2 divisors, whose sum is σ = 1090718. Its totient is φ = 1090716.

The previous prime is 1090711. The next prime is 1090721. The reversal of 1090717 is 7170901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 737881 + 352836 = 859^2 + 594^2 .

It is an emirp because it is prime and its reverse (7170901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1090717 - 2³ = 1090709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1090691 and 1090700.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1090711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 545358 + 545359.

It is an arithmetic number, because the mean of its divisors is an integer number (545359).

2^1090717 is an apocalyptic number.

It is an amenable number.

1090717 is a deficient number, since it is larger than the sum of its proper divisors (1).

1090717 is an equidigital number, since it uses as much as digits as its factorization.

1090717 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 441, while the sum is 25.

The square root of 1090717 is about 1044.3739751641. The cubic root of 1090717 is about 102.9368073120.

The spelling of 1090717 in words is "one million, ninety thousand, seven hundred seventeen".