3858939 has 12 divisors (see below), whose sum is σ = 6370416. Its totient is φ = 2205072.

The previous prime is 3858931. The next prime is 3858941. The reversal of 3858939 is 9398583.

3858939 is a `hidden beast` number, since 38 + 589 + 39 = 666.

It is not a de Polignac number, because 3858939 - 2³ = 3858931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3858894 and 3858903.

It is not an unprimeable number, because it can be changed into a prime (3858931) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30564 + ... + 30689.

It is an arithmetic number, because the mean of its divisors is an integer number (530868).

Almost surely, 2^3858939 is an apocalyptic number.

3858939 is a deficient number, since it is larger than the sum of its proper divisors (2511477).

3858939 is a wasteful number, since it uses less digits than its factorization.

3858939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61266 (or 61263 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 3858939 is about 1964.4182344908. The cubic root of 3858939 is about 156.8517268904.

The spelling of 3858939 in words is "three million, eight hundred fifty-eight thousand, nine hundred thirty-nine".