2027009 has 4 divisors (see below), whose sum is σ = 2048004. Its totient is φ = 2006016.

The previous prime is 2026987. The next prime is 2027021. The reversal of 2027009 is 9007202.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1056784 + 970225 = 1028^2 + 985^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2027009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2027099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10352 + ... + 10545.

It is an arithmetic number, because the mean of its divisors is an integer number (512001).

2^2027009 is an apocalyptic number.

It is an amenable number.

2027009 is a deficient number, since it is larger than the sum of its proper divisors (20995).

2027009 is an equidigital number, since it uses as much as digits as its factorization.

2027009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20994.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 2027009 is about 1423.7306627308. The cubic root of 2027009 is about 126.5567243922.

The spelling of 2027009 in words is "two million, twenty-seven thousand, nine".