1996310749 has 2 divisors, whose sum is σ = 1996310750. Its totient is φ = 1996310748.

The previous prime is 1996310713. The next prime is 1996310777. The reversal of 1996310749 is 9470136991.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1693898649 + 302412100 = 41157^2 + 17390^2 .

It is a cyclic number.

It is not a de Polignac number, because 1996310749 - 2⁹ = 1996310237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1996310549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 998155374 + 998155375.

It is an arithmetic number, because the mean of its divisors is an integer number (998155375).

Almost surely, 2^1996310749 is an apocalyptic number.

It is an amenable number.

1996310749 is a deficient number, since it is larger than the sum of its proper divisors (1).

1996310749 is an equidigital number, since it uses as much as digits as its factorization.

1996310749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 367416, while the sum is 49.

The square root of 1996310749 is about 44680.0934309677. The cubic root of 1996310749 is about 1259.1458789004.

The spelling of 1996310749 in words is "one billion, nine hundred ninety-six million, three hundred ten thousand, seven hundred forty-nine".