3686843 has 4 divisors (see below), whose sum is σ = 3776808. Its totient is φ = 3596880.

The previous prime is 3686833. The next prime is 3686849. The reversal of 3686843 is 3486863.

3686843 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3686843 - 2⁸ = 3686587 is a prime.

It is a super-2 number, since 2×3686843² = 27185622613298, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3686797 and 3686806.

It is not an unprimeable number, because it can be changed into a prime (3686849) 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 3 ways as a sum of consecutive naturals, for example, 44921 + ... + 45002.

It is an arithmetic number, because the mean of its divisors is an integer number (944202).

Almost surely, 2^3686843 is an apocalyptic number.

3686843 is a deficient number, since it is larger than the sum of its proper divisors (89965).

3686843 is an equidigital number, since it uses as much as digits as its factorization.

3686843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89964.

The product of its digits is 82944, while the sum is 38.

The square root of 3686843 is about 1920.1153611177. The cubic root of 3686843 is about 154.4844892491.

The spelling of 3686843 in words is "three million, six hundred eighty-six thousand, eight hundred forty-three".