1996634831 has 2 divisors, whose sum is σ = 1996634832. Its totient is φ = 1996634830.

The previous prime is 1996634813. The next prime is 1996634881. The reversal of 1996634831 is 1384366991.

Together with previous prime (1996634813) it forms an Ormiston pair, because they use the same digits, order apart.

It is an a-pointer prime, because the next prime (1996634881) can be obtained adding 1996634831 to its sum of digits (50).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1996634831 - 2⁶ = 1996634767 is a prime.

It is a super-2 number, since 2×1996634831² = 7973101296724797122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1996634831.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1996634881) by changing a digit.

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, 998317415 + 998317416.

It is an arithmetic number, because the mean of its divisors is an integer number (998317416).

Almost surely, 2^1996634831 is an apocalyptic number.

1996634831 is a deficient number, since it is larger than the sum of its proper divisors (1).

1996634831 is an equidigital number, since it uses as much as digits as its factorization.

1996634831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 839808, while the sum is 50.

The square root of 1996634831 is about 44683.7199771908. The cubic root of 1996634831 is about 1259.2140119862.

The spelling of 1996634831 in words is "one billion, nine hundred ninety-six million, six hundred thirty-four thousand, eight hundred thirty-one".