3409389 has 6 divisors (see below), whose sum is σ = 4924686. Its totient is φ = 2272920.

The previous prime is 3409387. The next prime is 3409409. The reversal of 3409389 is 9839043.

3409389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2673225 + 736164 = 1635^2 + 858^2 .

It is not a de Polignac number, because 3409389 - 2¹ = 3409387 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3409387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 189402 + ... + 189419.

It is an arithmetic number, because the mean of its divisors is an integer number (820781).

Almost surely, 2^3409389 is an apocalyptic number.

It is an amenable number.

3409389 is a deficient number, since it is larger than the sum of its proper divisors (1515297).

3409389 is a wasteful number, since it uses less digits than its factorization.

3409389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378827 (or 378824 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 3409389 is about 1846.4530863252. The cubic root of 3409389 is about 150.5077460206.

The spelling of 3409389 in words is "three million, four hundred nine thousand, three hundred eighty-nine".