1283717 has 2 divisors, whose sum is σ = 1283718. Its totient is φ = 1283716.

The previous prime is 1283707. The next prime is 1283719. The reversal of 1283717 is 7173821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 763876 + 519841 = 874^2 + 721^2 .

It is an emirp because it is prime and its reverse (7173821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1283717 - 2⁴ = 1283701 is a prime.

Together with 1283719, it forms a pair of twin primes.

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 1283717.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1283719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 641858 + 641859.

It is an arithmetic number, because the mean of its divisors is an integer number (641859).

2^1283717 is an apocalyptic number.

It is an amenable number.

1283717 is a deficient number, since it is larger than the sum of its proper divisors (1).

1283717 is an equidigital number, since it uses as much as digits as its factorization.

1283717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2352, while the sum is 29.

The square root of 1283717 is about 1133.0123565081. The cubic root of 1283717 is about 108.6817019523.

The spelling of 1283717 in words is "one million, two hundred eighty-three thousand, seven hundred seventeen".