3856518 has 32 divisors (see below), whose sum is σ = 9076320. Its totient is φ = 1209600.

The previous prime is 3856513. The next prime is 3856519. The reversal of 3856518 is 8156583.

3856518 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3856511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1183 + ... + 3018.

It is an arithmetic number, because the mean of its divisors is an integer number (283635).

Almost surely, 2^3856518 is an apocalyptic number.

3856518 is an abundant number, since it is smaller than the sum of its proper divisors (5219802).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3856518 is a wasteful number, since it uses less digits than its factorization.

3856518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4229 (or 4223 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 3856518 is about 1963.8019248387. The cubic root of 3856518 is about 156.8189184361.

It can be divided in two parts, 38565 and 18, that added together give a palindrome (38583).

The spelling of 3856518 in words is "three million, eight hundred fifty-six thousand, five hundred eighteen".