1322917 has 2 divisors, whose sum is σ = 1322918. Its totient is φ = 1322916.

The previous prime is 1322903. The next prime is 1322921. The reversal of 1322917 is 7192231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1252161 + 70756 = 1119^2 + 266^2 .

It is an emirp because it is prime and its reverse (7192231) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1322917 is a prime.

1322917 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1322891 and 1322900.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1322927) 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, 661458 + 661459.

It is an arithmetic number, because the mean of its divisors is an integer number (661459).

2^1322917 is an apocalyptic number.

It is an amenable number.

1322917 is a deficient number, since it is larger than the sum of its proper divisors (1).

1322917 is an equidigital number, since it uses as much as digits as its factorization.

1322917 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1322917 is about 1150.1812900582. The cubic root of 1322917 is about 109.7768755431.

The spelling of 1322917 in words is "one million, three hundred twenty-two thousand, nine hundred seventeen".