798517 has 2 divisors, whose sum is σ = 798518. Its totient is φ = 798516.

The previous prime is 798503. The next prime is 798521. The reversal of 798517 is 715897.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 527076 + 271441 = 726^2 + 521^2 .

It is a cyclic number.

It is not a de Polignac number, because 798517 - 2¹⁵ = 765749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (798527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 399258 + 399259.

It is an arithmetic number, because the mean of its divisors is an integer number (399259).

2⁷⁹⁸⁵¹⁷ is an apocalyptic number.

It is an amenable number.

798517 is a deficient number, since it is larger than the sum of its proper divisors (1).

798517 is an equidigital number, since it uses as much as digits as its factorization.

798517 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 798517 is about 893.5977842408. The cubic root of 798517 is about 92.7743788886.

The spelling of 798517 in words is "seven hundred ninety-eight thousand, five hundred seventeen".