811798 has 8 divisors (see below), whose sum is σ = 1311408. Its totient is φ = 374664.

The previous prime is 811777. The next prime is 811799. The reversal of 811798 is 897118.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (811799) by changing a digit.

811798 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 3 ways as a sum of consecutive naturals, for example, 15586 + ... + 15637.

It is an arithmetic number, because the mean of its divisors is an integer number (163926).

2⁸¹¹⁷⁹⁸ is an apocalyptic number.

811798 is a deficient number, since it is larger than the sum of its proper divisors (499610).

811798 is a wasteful number, since it uses less digits than its factorization.

811798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31238.

The product of its digits is 4032, while the sum is 34.

The square root of 811798 is about 900.9983351816. The cubic root of 811798 is about 93.2858970966.

The spelling of 811798 in words is "eight hundred eleven thousand, seven hundred ninety-eight".