798719 has 4 divisors (see below), whose sum is σ = 820344. Its totient is φ = 777096.

The previous prime is 798713. The next prime is 798727. The reversal of 798719 is 917897.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 917897 = 83 ⋅11059.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-798719 is a prime.

It is a super-2 number, since 2×798719² = 1275904081922, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian 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, 10757 + ... + 10830.

It is an arithmetic number, because the mean of its divisors is an integer number (205086).

2⁷⁹⁸⁷¹⁹ is an apocalyptic number.

798719 is a deficient number, since it is larger than the sum of its proper divisors (21625).

798719 is a wasteful number, since it uses less digits than its factorization.

798719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21624.

The product of its digits is 31752, while the sum is 41.

The square root of 798719 is about 893.7108033363. The cubic root of 798719 is about 92.7822012411.

The spelling of 798719 in words is "seven hundred ninety-eight thousand, seven hundred nineteen".