3934839 has 8 divisors (see below), whose sum is σ = 5388400. Its totient is φ = 2552256.

The previous prime is 3934823. The next prime is 3934849. The reversal of 3934839 is 9384393.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3934839 - 2⁴ = 3934823 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3934797 and 3934806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3934849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17614 + ... + 17835.

It is an arithmetic number, because the mean of its divisors is an integer number (673550).

Almost surely, 2^3934839 is an apocalyptic number.

3934839 is a deficient number, since it is larger than the sum of its proper divisors (1453561).

3934839 is a wasteful number, since it uses less digits than its factorization.

3934839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35489.

The product of its digits is 69984, while the sum is 39.

The square root of 3934839 is about 1983.6428610009. The cubic root of 3934839 is about 157.8734097920.

The spelling of 3934839 in words is "three million, nine hundred thirty-four thousand, eight hundred thirty-nine".