2006206809 has 8 divisors (see below), whose sum is σ = 2791244352. Its totient is φ = 1279320240.

The previous prime is 2006206799. The next prime is 2006206831. The reversal of 2006206809 is 9086026002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2006206809 - 2¹³ = 2006198617 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2006206809.

It is not an unprimeable number, because it can be changed into a prime (2006207809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14537662 + ... + 14537799.

It is an arithmetic number, because the mean of its divisors is an integer number (348905544).

Almost surely, 2^2006206809 is an apocalyptic number.

It is an amenable number.

2006206809 is a deficient number, since it is larger than the sum of its proper divisors (785037543).

2006206809 is a wasteful number, since it uses less digits than its factorization.

2006206809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29075487.

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

The square root of 2006206809 is about 44790.7000280192. The cubic root of 2006206809 is about 1261.2230521610.

The spelling of 2006206809 in words is "two billion, six million, two hundred six thousand, eight hundred nine".