1996776983 has 4 divisors (see below), whose sum is σ = 1996920288. Its totient is φ = 1996633680.

The previous prime is 1996776959. The next prime is 1996776997. The reversal of 1996776983 is 3896776991.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3896776991 = 4931 ⋅790261.

It is a cyclic number.

It is not a de Polignac number, because 1996776983 - 2⁶ = 1996776919 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 (1996776953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48191 + ... + 79472.

It is an arithmetic number, because the mean of its divisors is an integer number (499230072).

Almost surely, 2^1996776983 is an apocalyptic number.

1996776983 is a deficient number, since it is larger than the sum of its proper divisors (143305).

1996776983 is a wasteful number, since it uses less digits than its factorization.

1996776983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143304.

The product of its digits is 30862944, while the sum is 65.

The square root of 1996776983 is about 44685.3105953176. The cubic root of 1996776983 is about 1259.2438948571.

The spelling of 1996776983 in words is "one billion, nine hundred ninety-six million, seven hundred seventy-six thousand, nine hundred eighty-three".