2036609 has 4 divisors (see below), whose sum is σ = 2084016. Its totient is φ = 1989204.

The previous prime is 2036603. The next prime is 2036611. The reversal of 2036609 is 9066302.

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 2036609 - 2²⁰ = 988033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2036603) 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, 23639 + ... + 23724.

It is an arithmetic number, because the mean of its divisors is an integer number (521004).

2^2036609 is an apocalyptic number.

It is an amenable number.

2036609 is a deficient number, since it is larger than the sum of its proper divisors (47407).

2036609 is an equidigital number, since it uses as much as digits as its factorization.

2036609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47406.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 2036609 is about 1427.0981045464. The cubic root of 2036609 is about 126.7562024698.

The spelling of 2036609 in words is "two million, thirty-six thousand, six hundred nine".