3612009 has 4 divisors (see below), whose sum is σ = 4816016. Its totient is φ = 2408004.

The previous prime is 3611987. The next prime is 3612019. The reversal of 3612009 is 9002163.

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 not a de Polignac number, because 3612009 - 2²⁰ = 2563433 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3612019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 601999 + ... + 602004.

It is an arithmetic number, because the mean of its divisors is an integer number (1204004).

Almost surely, 2^3612009 is an apocalyptic number.

It is an amenable number.

3612009 is a deficient number, since it is larger than the sum of its proper divisors (1204007).

3612009 is a wasteful number, since it uses less digits than its factorization.

3612009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1204006.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 3612009 is about 1900.5286106765. The cubic root of 3612009 is about 153.4321160362.

The spelling of 3612009 in words is "three million, six hundred twelve thousand, nine".