2000389 has 2 divisors, whose sum is σ = 2000390. Its totient is φ = 2000388.

The previous prime is 2000387. The next prime is 2000393. The reversal of 2000389 is 9830002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1113025 + 887364 = 1055^2 + 942^2 .

It is a cyclic number.

It is not a de Polignac number, because 2000389 - 2¹ = 2000387 is a prime.

Together with 2000387, it forms a pair of twin primes.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2000381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000194 + 1000195.

It is an arithmetic number, because the mean of its divisors is an integer number (1000195).

2^2000389 is an apocalyptic number.

It is an amenable number.

2000389 is a deficient number, since it is larger than the sum of its proper divisors (1).

2000389 is an equidigital number, since it uses as much as digits as its factorization.

2000389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 2000389 is about 1414.3510879552. The cubic root of 2000389 is about 126.0002729481. Note that the first 3 decimals are identical.

The spelling of 2000389 in words is "two million, three hundred eighty-nine", and thus it is an aban number.