816798 has 8 divisors (see below), whose sum is σ = 1633608. Its totient is φ = 272264.

The previous prime is 816779. The next prime is 816811. The reversal of 816798 is 897618.

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

816798 is an admirable number.

It is a congruent number.

It is an unprimeable number.

816798 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, 68061 + ... + 68072.

It is an arithmetic number, because the mean of its divisors is an integer number (204201).

2⁸¹⁶⁷⁹⁸ is an apocalyptic number.

816798 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

816798 is a wasteful number, since it uses less digits than its factorization.

816798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136138.

The product of its digits is 24192, while the sum is 39.

The square root of 816798 is about 903.7687757386. The cubic root of 816798 is about 93.4770263936.

The spelling of 816798 in words is "eight hundred sixteen thousand, seven hundred ninety-eight".