3861286 has 32 divisors (see below), whose sum is σ = 7112448. Its totient is φ = 1547040.

The previous prime is 3861269. The next prime is 3861289. The reversal of 3861286 is 6821683.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3861289) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 6285 + ... + 6871.

It is an arithmetic number, because the mean of its divisors is an integer number (222264).

Almost surely, 2^3861286 is an apocalyptic number.

3861286 is a deficient number, since it is larger than the sum of its proper divisors (3251162).

3861286 is a wasteful number, since it uses less digits than its factorization.

3861286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636.

The product of its digits is 13824, while the sum is 34.

The square root of 3861286 is about 1965.0155215672. The cubic root of 3861286 is about 156.8835194285.

The spelling of 3861286 in words is "three million, eight hundred sixty-one thousand, two hundred eighty-six".