3861836 has 36 divisors (see below), whose sum is σ = 7596960. Its totient is φ = 1716000.

The previous prime is 3861821. The next prime is 3861841. The reversal of 3861836 is 6381683.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 3861796 and 3861805.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38186 + ... + 38286.

Almost surely, 2^3861836 is an apocalyptic number.

It is an amenable number.

3861836 is a deficient number, since it is larger than the sum of its proper divisors (3735124).

3861836 is a wasteful number, since it uses less digits than its factorization.

3861836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206 (or 193 counting only the distinct ones).

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

The square root of 3861836 is about 1965.1554645880. The cubic root of 3861836 is about 156.8909678830.

It can be divided in two parts, 386 and 1836, that added together give a palindrome (2222).

The spelling of 3861836 in words is "three million, eight hundred sixty-one thousand, eight hundred thirty-six".