3868439 has 4 divisors (see below), whose sum is σ = 4036656. Its totient is φ = 3700224.

The previous prime is 3868427. The next prime is 3868441. The reversal of 3868439 is 9348683.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3868439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3868396 and 3868405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3861439) 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, 84074 + ... + 84119.

It is an arithmetic number, because the mean of its divisors is an integer number (1009164).

Almost surely, 2^3868439 is an apocalyptic number.

3868439 is a deficient number, since it is larger than the sum of its proper divisors (168217).

3868439 is a wasteful number, since it uses less digits than its factorization.

3868439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168216.

The product of its digits is 124416, while the sum is 41.

The square root of 3868439 is about 1966.8347668271. The cubic root of 3868439 is about 156.9803348055.

The spelling of 3868439 in words is "three million, eight hundred sixty-eight thousand, four hundred thirty-nine".