1996683793 has 18 divisors (see below), whose sum is σ = 2190656034. Its totient is φ = 1818865152.

The previous prime is 1996683769. The next prime is 1996683833. The reversal of 1996683793 is 3973866991.

It can be written as a sum of positive squares in 9 ways, for example, as 572979969 + 1423703824 = 23937^2 + 37732^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1996683793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1996683763) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5720983 + ... + 5721331.

It is an arithmetic number, because the mean of its divisors is an integer number (121703113).

Almost surely, 2^1996683793 is an apocalyptic number.

1996683793 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1996683793 is a deficient number, since it is larger than the sum of its proper divisors (193972241).

1996683793 is an frugal number, since it uses more digits than its factorization.

1996683793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821 (or 459 counting only the distinct ones).

The product of its digits is 13226976, while the sum is 61.

The square root of 1996683793 is about 44684.2678467489. The cubic root of 1996683793 is about 1259.2243048269.

The spelling of 1996683793 in words is "one billion, nine hundred ninety-six million, six hundred eighty-three thousand, seven hundred ninety-three".