1996463281 has 2 divisors, whose sum is σ = 1996463282. Its totient is φ = 1996463280.

The previous prime is 1996463267. The next prime is 1996463341. The reversal of 1996463281 is 1823646991.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1271992225 + 724471056 = 35665^2 + 26916^2 .

It is a cyclic number.

It is not a de Polignac number, because 1996463281 - 2¹⁹ = 1995938993 is a prime.

It is a super-2 number, since 2×1996463281² = 7971731264762569922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1996463251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 998231640 + 998231641.

It is an arithmetic number, because the mean of its divisors is an integer number (998231641).

Almost surely, 2^1996463281 is an apocalyptic number.

It is an amenable number.

1996463281 is a deficient number, since it is larger than the sum of its proper divisors (1).

1996463281 is an equidigital number, since it uses as much as digits as its factorization.

1996463281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 559872, while the sum is 49.

The square root of 1996463281 is about 44681.8003330215. The cubic root of 1996463281 is about 1259.1779472458.

The spelling of 1996463281 in words is "one billion, nine hundred ninety-six million, four hundred sixty-three thousand, two hundred eighty-one".