2066289 has 4 divisors (see below), whose sum is σ = 2755056. Its totient is φ = 1377524.

The previous prime is 2066287. The next prime is 2066293. The reversal of 2066289 is 9826602.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2066289 - 2¹ = 2066287 is a prime.

It is a D-number.

2066289 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2066287) 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, 344379 + ... + 344384.

It is an arithmetic number, because the mean of its divisors is an integer number (688764).

2^2066289 is an apocalyptic number.

It is an amenable number.

2066289 is a deficient number, since it is larger than the sum of its proper divisors (688767).

2066289 is an equidigital number, since it uses as much as digits as its factorization.

2066289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688766.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 2066289 is about 1437.4592168128. The cubic root of 2066289 is about 127.3689849886.

The spelling of 2066289 in words is "two million, sixty-six thousand, two hundred eighty-nine".