2071999 has 2 divisors, whose sum is σ = 2072000. Its totient is φ = 2071998.

The previous prime is 2071997. The next prime is 2072003. The reversal of 2071999 is 9991702.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2071999 - 2¹ = 2071997 is a prime.

Together with 2071997, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2071991) 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 as a sum of consecutive naturals, namely, 1035999 + 1036000.

It is an arithmetic number, because the mean of its divisors is an integer number (1036000).

2^2071999 is an apocalyptic number.

2071999 is a deficient number, since it is larger than the sum of its proper divisors (1).

2071999 is an equidigital number, since it uses as much as digits as its factorization.

2071999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10206, while the sum is 37.

The square root of 2071999 is about 1439.4439898794. The cubic root of 2071999 is about 127.4862012492.

The spelling of 2071999 in words is "two million, seventy-one thousand, nine hundred ninety-nine".