986617 has 2 divisors, whose sum is σ = 986618. Its totient is φ = 986616.

The previous prime is 986599. The next prime is 986633. The reversal of 986617 is 716689.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 891136 + 95481 = 944^2 + 309^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-986617 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (986417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493308 + 493309.

It is an arithmetic number, because the mean of its divisors is an integer number (493309).

2⁹⁸⁶⁶¹⁷ is an apocalyptic number.

It is an amenable number.

986617 is a deficient number, since it is larger than the sum of its proper divisors (1).

986617 is an equidigital number, since it uses as much as digits as its factorization.

986617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 37.

The square root of 986617 is about 993.2859608391. The cubic root of 986617 is about 99.5518950185.

The spelling of 986617 in words is "nine hundred eighty-six thousand, six hundred seventeen".