439798 has 8 divisors (see below), whose sum is σ = 666792. Its totient is φ = 217536.

The previous prime is 439787. The next prime is 439799. The reversal of 439798 is 897934.

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

It is a self number, because there is not a number n which added to its sum of digits gives 439798.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (439799) by changing a digit.

439798 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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 940 + ... + 1327.

It is an arithmetic number, because the mean of its divisors is an integer number (83349).

2⁴³⁹⁷⁹⁸ is an apocalyptic number.

439798 is a deficient number, since it is larger than the sum of its proper divisors (226994).

439798 is a wasteful number, since it uses less digits than its factorization.

439798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2366.

The product of its digits is 54432, while the sum is 40.

The square root of 439798 is about 663.1726773624. The cubic root of 439798 is about 76.0474080943.

The spelling of 439798 in words is "four hundred thirty-nine thousand, seven hundred ninety-eight".