1996879 has 2 divisors, whose sum is σ = 1996880. Its totient is φ = 1996878.

The previous prime is 1996867. The next prime is 1996901. The reversal of 1996879 is 9786991.

It is a weak prime.

It is an emirp because it is prime and its reverse (9786991) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1996879 - 2⁷ = 1996751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1996829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 998439 + 998440.

It is an arithmetic number, because the mean of its divisors is an integer number (998440).

2^1996879 is an apocalyptic number.

1996879 is a deficient number, since it is larger than the sum of its proper divisors (1).

1996879 is an equidigital number, since it uses as much as digits as its factorization.

1996879 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1996879 is about 1413.1096914253. The cubic root of 1996879 is about 125.9265339765.

The spelling of 1996879 in words is "one million, nine hundred ninety-six thousand, eight hundred seventy-nine".