3839641 has 4 divisors (see below), whose sum is σ = 4135012. Its totient is φ = 3544272.

The previous prime is 3839639. The next prime is 3839651. The reversal of 3839641 is 1469383.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1469383 = 379 ⋅3877.

It can be written as a sum of positive squares in 2 ways, for example, as 1960000 + 1879641 = 1400^2 + 1371^2 .

It is a cyclic number.

It is not a de Polignac number, because 3839641 - 2¹ = 3839639 is a prime.

It is the 1960-th Hogben number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3839597 and 3839606.

It is not an unprimeable number, because it can be changed into a prime (3839611) by changing a digit.

It is a nontrivial repunit in base 1959.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147666 + ... + 147691.

It is an arithmetic number, because the mean of its divisors is an integer number (1033753).

Almost surely, 2^3839641 is an apocalyptic number.

It is an amenable number.

3839641 is a deficient number, since it is larger than the sum of its proper divisors (295371).

3839641 is a wasteful number, since it uses less digits than its factorization.

3839641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295370.

The product of its digits is 15552, while the sum is 34.

The square root of 3839641 is about 1959.5001913753. The cubic root of 3839641 is about 156.5898255034.

The spelling of 3839641 in words is "three million, eight hundred thirty-nine thousand, six hundred forty-one".