1247017 has 2 divisors, whose sum is σ = 1247018. Its totient is φ = 1247016.

The previous prime is 1247009. The next prime is 1247033. The reversal of 1247017 is 7107421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1132096 + 114921 = 1064^2 + 339^2 .

It is an emirp because it is prime and its reverse (7107421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1247017 - 2³ = 1247009 is a prime.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (1247117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 623508 + 623509.

It is an arithmetic number, because the mean of its divisors is an integer number (623509).

2^1247017 is an apocalyptic number.

It is an amenable number.

1247017 is a deficient number, since it is larger than the sum of its proper divisors (1).

1247017 is an equidigital number, since it uses as much as digits as its factorization.

1247017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 1247017 is about 1116.6991537563. The cubic root of 1247017 is about 107.6359771992.

The spelling of 1247017 in words is "one million, two hundred forty-seven thousand, seventeen".