798864 has 80 divisors (see below), whose sum is σ = 2410560. Its totient is φ = 225280.

The previous prime is 798823. The next prime is 798871. The reversal of 798864 is 468897.

798864 = T₈₇ + T₈₈ + ... + T₁₇₅.

It is a happy number.

Its product of digits (96768) is a multiple of the sum of its prime factors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8932 + ... + 9020.

It is an arithmetic number, because the mean of its divisors is an integer number (30132).

2⁷⁹⁸⁸⁶⁴ 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 798864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1205280).

798864 is an abundant number, since it is smaller than the sum of its proper divisors (1611696).

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

798864 is a wasteful number, since it uses less digits than its factorization.

798864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 122 counting only the distinct ones).

The product of its digits is 96768, while the sum is 42.

The square root of 798864 is about 893.7919220937. The cubic root of 798864 is about 92.7878154831.

The spelling of 798864 in words is "seven hundred ninety-eight thousand, eight hundred sixty-four".