3904838 has 8 divisors (see below), whose sum is σ = 6694032. Its totient is φ = 1673496.

The previous prime is 3904829. The next prime is 3904877. The reversal of 3904838 is 8384093.

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

It is a junction number, because it is equal to n+sod(n) for n = 3904798 and 3904807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139445 + ... + 139472.

It is an arithmetic number, because the mean of its divisors is an integer number (836754).

Almost surely, 2^3904838 is an apocalyptic number.

3904838 is a deficient number, since it is larger than the sum of its proper divisors (2789194).

3904838 is a wasteful number, since it uses less digits than its factorization.

3904838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278926.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 3904838 is about 1976.0662944345. The cubic root of 3904838 is about 157.4711528591.

The spelling of 3904838 in words is "three million, nine hundred four thousand, eight hundred thirty-eight".