3856115 has 16 divisors (see below), whose sum is σ = 4821120. Its totient is φ = 2958720.

The previous prime is 3856109. The next prime is 3856123. The reversal of 3856115 is 5116583.

It is not a de Polignac number, because 3856115 - 2¹⁰ = 3855091 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14201 + ... + 14469.

It is an arithmetic number, because the mean of its divisors is an integer number (301320).

Almost surely, 2^3856115 is an apocalyptic number.

3856115 is a deficient number, since it is larger than the sum of its proper divisors (965005).

3856115 is a wasteful number, since it uses less digits than its factorization.

3856115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382.

The product of its digits is 3600, while the sum is 29.

The square root of 3856115 is about 1963.6993150684. The cubic root of 3856115 is about 156.8134558033.

The spelling of 3856115 in words is "three million, eight hundred fifty-six thousand, one hundred fifteen".