3189909 has 4 divisors (see below), whose sum is σ = 4253216. Its totient is φ = 2126604.

The previous prime is 3189899. The next prime is 3189943. The reversal of 3189909 is 9099813.

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 3189909 - 2⁸ = 3189653 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3189409) 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, 531649 + ... + 531654.

It is an arithmetic number, because the mean of its divisors is an integer number (1063304).

Almost surely, 2^3189909 is an apocalyptic number.

It is an amenable number.

3189909 is a deficient number, since it is larger than the sum of its proper divisors (1063307).

3189909 is a wasteful number, since it uses less digits than its factorization.

3189909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1063306.

The product of its (nonzero) digits is 17496, while the sum is 39.

The square root of 3189909 is about 1786.0316346582. The cubic root of 3189909 is about 147.2061986648.

The spelling of 3189909 in words is "three million, one hundred eighty-nine thousand, nine hundred nine".