3316409 has 4 divisors (see below), whose sum is σ = 3320100. Its totient is φ = 3312720.

The previous prime is 3316403. The next prime is 3316427. The reversal of 3316409 is 9046133.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9046133 = 2221 ⋅4073.

It can be written as a sum of positive squares in 2 ways, for example, as 2310400 + 1006009 = 1520^2 + 1003^2 .

It is a cyclic number.

It is not a de Polignac number, because 3316409 - 2⁸ = 3316153 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3316403) 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, 479 + ... + 2619.

It is an arithmetic number, because the mean of its divisors is an integer number (830025).

Almost surely, 2^3316409 is an apocalyptic number.

It is an amenable number.

3316409 is a deficient number, since it is larger than the sum of its proper divisors (3691).

3316409 is a wasteful number, since it uses less digits than its factorization.

3316409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3690.

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

The square root of 3316409 is about 1821.1010405796. The cubic root of 3316409 is about 149.1269131743.

The spelling of 3316409 in words is "three million, three hundred sixteen thousand, four hundred nine".