1996098643 has 18 divisors (see below), whose sum is σ = 2552280108. Its totient is φ = 1555396920.

The previous prime is 1996098617. The next prime is 1996098691. The reversal of 1996098643 is 3468906991.

It is not a de Polignac number, because 1996098643 - 2¹³ = 1996090451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1996090643) 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 in 17 ways as a sum of consecutive naturals, for example, 162405 + ... + 174262.

Almost surely, 2^1996098643 is an apocalyptic number.

1996098643 is a deficient number, since it is larger than the sum of its proper divisors (556181465).

1996098643 is a wasteful number, since it uses less digits than its factorization.

1996098643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336703 (or 336685 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 55.

The square root of 1996098643 is about 44677.7197605249. The cubic root of 1996098643 is about 1259.1012829951.

The spelling of 1996098643 in words is "one billion, nine hundred ninety-six million, ninety-eight thousand, six hundred forty-three".