797820 has 24 divisors (see below), whose sum is σ = 2234064. Its totient is φ = 212736.

The previous prime is 797813. The next prime is 797833. The reversal of 797820 is 28797.

797820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 797820.

It is an unprimeable number.

797820 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6589 + ... + 6708.

It is an arithmetic number, because the mean of its divisors is an integer number (93086).

2⁷⁹⁷⁸²⁰ is an apocalyptic number.

It is an amenable number.

797820 is an abundant number, since it is smaller than the sum of its proper divisors (1436244).

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

797820 is a wasteful number, since it uses less digits than its factorization.

797820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13309 (or 13307 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 33.

The square root of 797820 is about 893.2077026090. The cubic root of 797820 is about 92.7473777663.

The spelling of 797820 in words is "seven hundred ninety-seven thousand, eight hundred twenty".