1711986257 has 2 divisors, whose sum is σ = 1711986258. Its totient is φ = 1711986256.

The previous prime is 1711986187. The next prime is 1711986281. The reversal of 1711986257 is 7526891171.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1022976256 + 689010001 = 31984^2 + 26249^2 .

It is a cyclic number.

It is not a de Polignac number, because 1711986257 - 2¹⁴ = 1711969873 is a prime.

It is not a weakly prime, because it can be changed into another prime (1711982257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 855993128 + 855993129.

It is an arithmetic number, because the mean of its divisors is an integer number (855993129).

Almost surely, 2^1711986257 is an apocalyptic number.

It is an amenable number.

1711986257 is a deficient number, since it is larger than the sum of its proper divisors (1).

1711986257 is an equidigital number, since it uses as much as digits as its factorization.

1711986257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211680, while the sum is 47.

The square root of 1711986257 is about 41376.1556575765. The cubic root of 1711986257 is about 1196.2816048955.

The spelling of 1711986257 in words is "one billion, seven hundred eleven million, nine hundred eighty-six thousand, two hundred fifty-seven".