798438 has 8 divisors (see below), whose sum is σ = 1596888. Its totient is φ = 266144.

The previous prime is 798409. The next prime is 798443. The reversal of 798438 is 834897.

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

798438 is an admirable number.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 798396 and 798405.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 798438.

It is an unprimeable number.

798438 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 3 ways as a sum of consecutive naturals, for example, 66531 + ... + 66542.

It is an arithmetic number, because the mean of its divisors is an integer number (199611).

2⁷⁹⁸⁴³⁸ is an apocalyptic number.

798438 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

798438 is a wasteful number, since it uses less digits than its factorization.

798438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133078.

The product of its digits is 48384, while the sum is 39.

The square root of 798438 is about 893.5535798149. The cubic root of 798438 is about 92.7713192928.

The spelling of 798438 in words is "seven hundred ninety-eight thousand, four hundred thirty-eight".