3686223 has 4 divisors (see below), whose sum is σ = 4914968. Its totient is φ = 2457480.

The previous prime is 3686183. The next prime is 3686237. The reversal of 3686223 is 3226863.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3226863 = 3 ⋅1075621.

It is not a de Polignac number, because 3686223 - 2⁶ = 3686159 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3686623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 614368 + ... + 614373.

It is an arithmetic number, because the mean of its divisors is an integer number (1228742).

Almost surely, 2^3686223 is an apocalyptic number.

3686223 is a deficient number, since it is larger than the sum of its proper divisors (1228745).

3686223 is a wasteful number, since it uses less digits than its factorization.

3686223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228744.

The product of its digits is 10368, while the sum is 30.

The square root of 3686223 is about 1919.9539056967. The cubic root of 3686223 is about 154.4758291070.

The spelling of 3686223 in words is "three million, six hundred eighty-six thousand, two hundred twenty-three".