2001998983 has 2 divisors, whose sum is σ = 2001998984. Its totient is φ = 2001998982.

The previous prime is 2001998969. The next prime is 2001999001. The reversal of 2001998983 is 3898991002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2001998983 - 2⁵ = 2001998951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2001998953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000999491 + 1000999492.

It is an arithmetic number, because the mean of its divisors is an integer number (1000999492).

Almost surely, 2^2001998983 is an apocalyptic number.

2001998983 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001998983 is an equidigital number, since it uses as much as digits as its factorization.

2001998983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 279936, while the sum is 49.

The square root of 2001998983 is about 44743.7032776680. The cubic root of 2001998983 is about 1260.3406702503.

The spelling of 2001998983 in words is "two billion, one million, nine hundred ninety-eight thousand, nine hundred eighty-three".