1996423706 has 4 divisors (see below), whose sum is σ = 2994635562. Its totient is φ = 998211852.

The previous prime is 1996423691. The next prime is 1996423717. The reversal of 1996423706 is 6073246991.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 1606005625 + 390418081 = 40075^2 + 19759^2 .

It is a super-2 number, since 2×1996423706² = 7971415227757548872, which contains 22 as substring.

It is an unprimeable number.

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, 499105925 + ... + 499105928.

Almost surely, 2^1996423706 is an apocalyptic number.

1996423706 is a deficient number, since it is larger than the sum of its proper divisors (998211856).

1996423706 is an equidigital number, since it uses as much as digits as its factorization.

1996423706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998211855.

The product of its (nonzero) digits is 489888, while the sum is 47.

The square root of 1996423706 is about 44681.3574771403. The cubic root of 1996423706 is about 1259.1696271501.

The spelling of 1996423706 in words is "one billion, nine hundred ninety-six million, four hundred twenty-three thousand, seven hundred six".