3408809 has 4 divisors (see below), whose sum is σ = 3588240. Its totient is φ = 3229380.

The previous prime is 3408803. The next prime is 3408827. The reversal of 3408809 is 9088043.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9088043 = 2371 ⋅3833.

It is a cyclic number.

It is not a de Polignac number, because 3408809 - 2⁴ = 3408793 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 (3408803) 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, 89687 + ... + 89724.

It is an arithmetic number, because the mean of its divisors is an integer number (897060).

Almost surely, 2^3408809 is an apocalyptic number.

It is an amenable number.

3408809 is a deficient number, since it is larger than the sum of its proper divisors (179431).

3408809 is a wasteful number, since it uses less digits than its factorization.

3408809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179430.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 3408809 is about 1846.2960217690. The cubic root of 3408809 is about 150.4992108213.

The spelling of 3408809 in words is "three million, four hundred eight thousand, eight hundred nine".