1317427 has 2 divisors, whose sum is σ = 1317428. Its totient is φ = 1317426.

The previous prime is 1317419. The next prime is 1317443. The reversal of 1317427 is 7247131.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1317427 - 2³ = 1317419 is a prime.

It is a super-2 number, since 2×1317427² = 3471227800658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1317487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 658713 + 658714.

It is an arithmetic number, because the mean of its divisors is an integer number (658714).

2^1317427 is an apocalyptic number.

1317427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1317427 is an equidigital number, since it uses as much as digits as its factorization.

1317427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1176, while the sum is 25.

The square root of 1317427 is about 1147.7922285849. The cubic root of 1317427 is about 109.6248099037.

The spelling of 1317427 in words is "one million, three hundred seventeen thousand, four hundred twenty-seven".