798717 has 4 divisors (see below), whose sum is σ = 1064960. Its totient is φ = 532476.

The previous prime is 798713. The next prime is 798727. The reversal of 798717 is 717897.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 798717 - 2² = 798713 is a prime.

It is a D-number.

It is a Duffinian number.

798717 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (798713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133117 + ... + 133122.

It is an arithmetic number, because the mean of its divisors is an integer number (266240).

2⁷⁹⁸⁷¹⁷ is an apocalyptic number.

It is an amenable number.

798717 is a deficient number, since it is larger than the sum of its proper divisors (266243).

798717 is a wasteful number, since it uses less digits than its factorization.

798717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266242.

The product of its digits is 24696, while the sum is 39.

The square root of 798717 is about 893.7096844054. The cubic root of 798717 is about 92.7821237986.

The spelling of 798717 in words is "seven hundred ninety-eight thousand, seven hundred seventeen".