897517 has 2 divisors, whose sum is σ = 897518. Its totient is φ = 897516.

The previous prime is 897499. The next prime is 897527. The reversal of 897517 is 715798.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 894916 + 2601 = 946^2 + 51^2 .

It is a cyclic number.

It is not a de Polignac number, because 897517 - 2¹¹ = 895469 is a prime.

It is a plaindrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (897527) 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, 448758 + 448759.

It is an arithmetic number, because the mean of its divisors is an integer number (448759).

2⁸⁹⁷⁵¹⁷ is an apocalyptic number.

It is an amenable number.

897517 is a deficient number, since it is larger than the sum of its proper divisors (1).

897517 is an equidigital number, since it uses as much as digits as its factorization.

897517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17640, while the sum is 37.

The square root of 897517 is about 947.3737382892. The cubic root of 897517 is about 96.4600674174.

The spelling of 897517 in words is "eight hundred ninety-seven thousand, five hundred seventeen".