898717 has 2 divisors, whose sum is σ = 898718. Its totient is φ = 898716.

The previous prime is 898691. The next prime is 898727. The reversal of 898717 is 717898.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 674041 + 224676 = 821^2 + 474^2 .

It is a cyclic number.

It is not a de Polignac number, because 898717 - 2¹¹ = 896669 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 898717.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (898727) 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, 449358 + 449359.

It is an arithmetic number, because the mean of its divisors is an integer number (449359).

2⁸⁹⁸⁷¹⁷ is an apocalyptic number.

It is an amenable number.

898717 is a deficient number, since it is larger than the sum of its proper divisors (1).

898717 is an equidigital number, since it uses as much as digits as its factorization.

898717 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28224, while the sum is 40.

The square root of 898717 is about 948.0068565153. The cubic root of 898717 is about 96.5030380172.

The spelling of 898717 in words is "eight hundred ninety-eight thousand, seven hundred seventeen".