3686943 has 32 divisors (see below), whose sum is σ = 5757696. Its totient is φ = 2078208.

The previous prime is 3686941. The next prime is 3686951. The reversal of 3686943 is 3496863.

It is not a de Polignac number, because 3686943 - 2¹ = 3686941 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3686941) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44380 + ... + 44462.

It is an arithmetic number, because the mean of its divisors is an integer number (179928).

Almost surely, 2^3686943 is an apocalyptic number.

3686943 is a deficient number, since it is larger than the sum of its proper divisors (2070753).

3686943 is a wasteful number, since it uses less digits than its factorization.

3686943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183.

The product of its digits is 93312, while the sum is 39.

The square root of 3686943 is about 1920.1414010432. The cubic root of 3686943 is about 154.4858859553.

The spelling of 3686943 in words is "three million, six hundred eighty-six thousand, nine hundred forty-three".