2000819 has 4 divisors (see below), whose sum is σ = 2021544. Its totient is φ = 1980096.

The previous prime is 2000813. The next prime is 2000863. The reversal of 2000819 is 9180002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2000819 - 2¹² = 1996723 is a prime.

It is a super-2 number, since 2×2000819² = 8006553341522, which contains 22 as substring.

It is a Duffinian number.

2000819 is a modest number, since divided by 819 gives 2 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 2000819.

It is not an unprimeable number, because it can be changed into a prime (2000813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10217 + ... + 10410.

It is an arithmetic number, because the mean of its divisors is an integer number (505386).

2^2000819 is an apocalyptic number.

2000819 is a deficient number, since it is larger than the sum of its proper divisors (20725).

2000819 is an equidigital number, since it uses as much as digits as its factorization.

2000819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20724.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 2000819 is about 1414.5030929623. The cubic root of 2000819 is about 126.0093005648.

The spelling of 2000819 in words is "two million, eight hundred nineteen", and thus it is an aban number.