1996586679 has 4 divisors (see below), whose sum is σ = 2662115576. Its totient is φ = 1331057784.

The previous prime is 1996586659. The next prime is 1996586731. The reversal of 1996586679 is 9766856991.

It is a happy number.

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

It is not a de Polignac number, because 1996586679 - 2⁹ = 1996586167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1996586639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 332764444 + ... + 332764449.

It is an arithmetic number, because the mean of its divisors is an integer number (665528894).

Almost surely, 2^1996586679 is an apocalyptic number.

1996586679 is a deficient number, since it is larger than the sum of its proper divisors (665528897).

1996586679 is an equidigital number, since it uses as much as digits as its factorization.

1996586679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665528896.

The product of its digits is 44089920, while the sum is 66.

The square root of 1996586679 is about 44683.1811647291. The cubic root of 1996586679 is about 1259.2038892604.

The spelling of 1996586679 in words is "one billion, nine hundred ninety-six million, five hundred eighty-six thousand, six hundred seventy-nine".