1726091 has 2 divisors, whose sum is σ = 1726092. Its totient is φ = 1726090.

The previous prime is 1726079. The next prime is 1726103. The reversal of 1726091 is 1906271.

It is a balanced prime because it is at equal distance from previous prime (1726079) and next prime (1726103).

It is an emirp because it is prime and its reverse (1906271) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1726091 - 2¹⁸ = 1463947 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1726091.

It is not a weakly prime, because it can be changed into another prime (1726031) 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, 863045 + 863046.

It is an arithmetic number, because the mean of its divisors is an integer number (863046).

2^1726091 is an apocalyptic number.

1726091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1726091 is an equidigital number, since it uses as much as digits as its factorization.

1726091 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 26.

The square root of 1726091 is about 1313.8078246075. The cubic root of 1726091 is about 119.9557939024.

The spelling of 1726091 in words is "one million, seven hundred twenty-six thousand, ninety-one".