1326917 has 2 divisors, whose sum is σ = 1326918. Its totient is φ = 1326916.

The previous prime is 1326889. The next prime is 1326929. The reversal of 1326917 is 7196231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1324801 + 2116 = 1151^2 + 46^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1326917 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1326917.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1326947) 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, 663458 + 663459.

It is an arithmetic number, because the mean of its divisors is an integer number (663459).

2^1326917 is an apocalyptic number.

It is an amenable number.

1326917 is a deficient number, since it is larger than the sum of its proper divisors (1).

1326917 is an equidigital number, since it uses as much as digits as its factorization.

1326917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2268, while the sum is 29.

The square root of 1326917 is about 1151.9188339462. The cubic root of 1326917 is about 109.8874054502.

The spelling of 1326917 in words is "one million, three hundred twenty-six thousand, nine hundred seventeen".