2039609 has 16 divisors (see below), whose sum is σ = 2540160. Its totient is φ = 1608960.

The previous prime is 2039603. The next prime is 2039621. The reversal of 2039609 is 9069302.

It is a cyclic number.

It is not a de Polignac number, because 2039609 - 2⁸ = 2039353 is a prime.

It is a Duffinian number.

2039609 is a Rhonda number in base 12.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2039603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2012 + ... + 2850.

It is an arithmetic number, because the mean of its divisors is an integer number (158760).

2^2039609 is an apocalyptic number.

It is an amenable number.

2039609 is a deficient number, since it is larger than the sum of its proper divisors (500551).

2039609 is a wasteful number, since it uses less digits than its factorization.

2039609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 2039609 is about 1428.1488017710. The cubic root of 2039609 is about 126.8184107849.

The spelling of 2039609 in words is "two million, thirty-nine thousand, six hundred nine".