1996884391 has 2 divisors, whose sum is σ = 1996884392. Its totient is φ = 1996884390.

The previous prime is 1996884371. The next prime is 1996884451. The reversal of 1996884391 is 1934886991.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1996884391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1996884361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 998442195 + 998442196.

It is an arithmetic number, because the mean of its divisors is an integer number (998442196).

Almost surely, 2^1996884391 is an apocalyptic number.

1996884391 is a deficient number, since it is larger than the sum of its proper divisors (1).

1996884391 is an equidigital number, since it uses as much as digits as its factorization.

1996884391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3359232, while the sum is 58.

The square root of 1996884391 is about 44686.5124058703. The cubic root of 1996884391 is about 1259.2664729824.

The spelling of 1996884391 in words is "one billion, nine hundred ninety-six million, eight hundred eighty-four thousand, three hundred ninety-one".