798565 has 8 divisors (see below), whose sum is σ = 974880. Its totient is φ = 627792.

The previous prime is 798533. The next prime is 798569. The reversal of 798565 is 565897.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 798565 - 2⁵ = 798533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (798569) 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 in 7 ways as a sum of consecutive naturals, for example, 1059 + ... + 1648.

It is an arithmetic number, because the mean of its divisors is an integer number (121860).

2⁷⁹⁸⁵⁶⁵ is an apocalyptic number.

It is an amenable number.

798565 is a deficient number, since it is larger than the sum of its proper divisors (176315).

798565 is a wasteful number, since it uses less digits than its factorization.

798565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2771.

The product of its digits is 75600, while the sum is 40.

The square root of 798565 is about 893.6246415582. The cubic root of 798565 is about 92.7762377849.

The spelling of 798565 in words is "seven hundred ninety-eight thousand, five hundred sixty-five".