1317697 has 2 divisors, whose sum is σ = 1317698. Its totient is φ = 1317696.

The previous prime is 1317691. The next prime is 1317703. The reversal of 1317697 is 7967131.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (1317691) and next prime (1317703).

It can be written as a sum of positive squares in only one way, i.e., 1252161 + 65536 = 1119^2 + 256^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1317697 is a prime.

1317697 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1317691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 658848 + 658849.

It is an arithmetic number, because the mean of its divisors is an integer number (658849).

2^1317697 is an apocalyptic number.

It is an amenable number.

1317697 is a deficient number, since it is larger than the sum of its proper divisors (1).

1317697 is an equidigital number, since it uses as much as digits as its factorization.

1317697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7938, while the sum is 34.

The square root of 1317697 is about 1147.9098396651. The cubic root of 1317697 is about 109.6322984089.

The spelling of 1317697 in words is "one million, three hundred seventeen thousand, six hundred ninety-seven".