3403209 has 4 divisors (see below), whose sum is σ = 4537616. Its totient is φ = 2268804.

The previous prime is 3403201. The next prime is 3403229. The reversal of 3403209 is 9023043.

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 3403209 - 2³ = 3403201 is a prime.

It is a D-number.

It is a Duffinian number.

3403209 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3403201) 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, 567199 + ... + 567204.

It is an arithmetic number, because the mean of its divisors is an integer number (1134404).

Almost surely, 2^3403209 is an apocalyptic number.

It is an amenable number.

3403209 is a deficient number, since it is larger than the sum of its proper divisors (1134407).

3403209 is a wasteful number, since it uses less digits than its factorization.

3403209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134406.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 3403209 is about 1844.7788485344. The cubic root of 3403209 is about 150.4167521564.

The spelling of 3403209 in words is "three million, four hundred three thousand, two hundred nine".