3847838 has 8 divisors (see below), whose sum is σ = 5782800. Its totient is φ = 1920240.

The previous prime is 3847829. The next prime is 3847849. The reversal of 3847838 is 8387483.

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 = 3847795 and 3847804.

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, 263 + ... + 2786.

It is an arithmetic number, because the mean of its divisors is an integer number (722850).

Almost surely, 2^3847838 is an apocalyptic number.

3847838 is a deficient number, since it is larger than the sum of its proper divisors (1934962).

3847838 is a wasteful number, since it uses less digits than its factorization.

3847838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3682.

The product of its digits is 129024, while the sum is 41.

The square root of 3847838 is about 1961.5906810545. The cubic root of 3847838 is about 156.7011774484.

The spelling of 3847838 in words is "three million, eight hundred forty-seven thousand, eight hundred thirty-eight".