2068609 has 4 divisors (see below), whose sum is σ = 2093616. Its totient is φ = 2043604.

The previous prime is 2068607. The next prime is 2068637. The reversal of 2068609 is 9068602.

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 2068609 - 2¹ = 2068607 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2068607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12379 + ... + 12544.

It is an arithmetic number, because the mean of its divisors is an integer number (523404).

2^2068609 is an apocalyptic number.

It is an amenable number.

2068609 is a deficient number, since it is larger than the sum of its proper divisors (25007).

2068609 is an equidigital number, since it uses as much as digits as its factorization.

2068609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25006.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 2068609 is about 1438.2659698401. The cubic root of 2068609 is about 127.4166365225.

The spelling of 2068609 in words is "two million, sixty-eight thousand, six hundred nine".