2068009 has 4 divisors (see below), whose sum is σ = 2103120. Its totient is φ = 2032900.

The previous prime is 2067997. The next prime is 2068037. The reversal of 2068009 is 9008602.

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 2068009 - 2⁵ = 2067977 is a prime.

It is a super-2 number, since 2×2068009² = 8553322448162, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

2068009 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2068039) 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, 17467 + ... + 17584.

It is an arithmetic number, because the mean of its divisors is an integer number (525780).

2^2068009 is an apocalyptic number.

It is an amenable number.

2068009 is a deficient number, since it is larger than the sum of its proper divisors (35111).

2068009 is an equidigital number, since it uses as much as digits as its factorization.

2068009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35110.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 2068009 is about 1438.0573702047. The cubic root of 2068009 is about 127.4043162670.

The spelling of 2068009 in words is "two million, sixty-eight thousand, nine".