3409409 has 2 divisors, whose sum is σ = 3409410. Its totient is φ = 3409408.

The previous prime is 3409387. The next prime is 3409459. The reversal of 3409409 is 9049043.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3073009 + 336400 = 1753^2 + 580^2 .

It is a cyclic number.

It is not a de Polignac number, because 3409409 - 2²⁰ = 2360833 is a prime.

It is not a weakly prime, because it can be changed into another prime (3409459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1704704 + 1704705.

It is an arithmetic number, because the mean of its divisors is an integer number (1704705).

Almost surely, 2^3409409 is an apocalyptic number.

It is an amenable number.

3409409 is a deficient number, since it is larger than the sum of its proper divisors (1).

3409409 is an equidigital number, since it uses as much as digits as its factorization.

3409409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 3409409 is about 1846.4585021061. The cubic root of 3409409 is about 150.5080403205.

The spelling of 3409409 in words is "three million, four hundred nine thousand, four hundred nine".