986717 has 2 divisors, whose sum is σ = 986718. Its totient is φ = 986716.

The previous prime is 986707. The next prime is 986719. The reversal of 986717 is 717689.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 835396 + 151321 = 914^2 + 389^2 .

It is a cyclic number.

It is not a de Polignac number, because 986717 - 2¹² = 982621 is a prime.

It is a super-2 number, since 2×986717² = 1947220876178, which contains 22 as substring.

Together with 986719, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 986717.

It is not a weakly prime, because it can be changed into another prime (986719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493358 + 493359.

It is an arithmetic number, because the mean of its divisors is an integer number (493359).

2⁹⁸⁶⁷¹⁷ is an apocalyptic number.

It is an amenable number.

986717 is a deficient number, since it is larger than the sum of its proper divisors (1).

986717 is an equidigital number, since it uses as much as digits as its factorization.

986717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21168, while the sum is 38.

The square root of 986717 is about 993.3362975347. The cubic root of 986717 is about 99.5552583139. Note that the first 3 decimals are identical.

The spelling of 986717 in words is "nine hundred eighty-six thousand, seven hundred seventeen".