798940 has 24 divisors (see below), whose sum is σ = 1718640. Its totient is φ = 311808.

The previous prime is 798937. The next prime is 798943. The reversal of 798940 is 49897.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (798937) and next prime (798943).

It is a self number, because there is not a number n which added to its sum of digits gives 798940.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (798943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 396 + ... + 1324.

It is an arithmetic number, because the mean of its divisors is an integer number (71610).

2⁷⁹⁸⁹⁴⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 798940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (859320).

798940 is an abundant number, since it is smaller than the sum of its proper divisors (919700).

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

798940 is a wasteful number, since it uses less digits than its factorization.

798940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981 (or 979 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 798940 is about 893.8344365709. The cubic root of 798940 is about 92.7907578489.

The spelling of 798940 in words is "seven hundred ninety-eight thousand, nine hundred forty".