3839389 has 4 divisors (see below), whose sum is σ = 3861756. Its totient is φ = 3817024.

The previous prime is 3839369. The next prime is 3839417. The reversal of 3839389 is 9839383.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9839383 = 1231 ⋅7993.

It can be written as a sum of positive squares in 2 ways, for example, as 3572100 + 267289 = 1890^2 + 517^2 .

It is a cyclic number.

It is not a de Polignac number, because 3839389 - 2⁷ = 3839261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3839309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10924 + ... + 11269.

It is an arithmetic number, because the mean of its divisors is an integer number (965439).

Almost surely, 2^3839389 is an apocalyptic number.

It is an amenable number.

3839389 is a deficient number, since it is larger than the sum of its proper divisors (22367).

3839389 is a wasteful number, since it uses less digits than its factorization.

3839389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22366.

The product of its digits is 139968, while the sum is 43.

The square root of 3839389 is about 1959.4358882086. The cubic root of 3839389 is about 156.5863997058.

The spelling of 3839389 in words is "three million, eight hundred thirty-nine thousand, three hundred eighty-nine".