1996798 has 4 divisors (see below), whose sum is σ = 2995200. Its totient is φ = 998398.

The previous prime is 1996793. The next prime is 1996817. The reversal of 1996798 is 8976991.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1996793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499198 + ... + 499201.

It is an arithmetic number, because the mean of its divisors is an integer number (748800).

2^1996798 is an apocalyptic number.

1996798 is a deficient number, since it is larger than the sum of its proper divisors (998402).

1996798 is an equidigital number, since it uses as much as digits as its factorization.

1996798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998401.

The product of its digits is 244944, while the sum is 49.

The square root of 1996798 is about 1413.0810309391. The cubic root of 1996798 is about 125.9248312883.

The spelling of 1996798 in words is "one million, nine hundred ninety-six thousand, seven hundred ninety-eight".