3686838 has 16 divisors (see below), whose sum is σ = 7392816. Its totient is φ = 1225760.

The previous prime is 3686833. The next prime is 3686849. The reversal of 3686838 is 8386863.

It is a self number, because there is not a number n which added to its sum of digits gives 3686838.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3686833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3448 + ... + 4388.

It is an arithmetic number, because the mean of its divisors is an integer number (462051).

Almost surely, 2^3686838 is an apocalyptic number.

3686838 is an abundant number, since it is smaller than the sum of its proper divisors (3705978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3686838 is a wasteful number, since it uses less digits than its factorization.

3686838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1599.

The product of its digits is 165888, while the sum is 42.

The square root of 3686838 is about 1920.1140591121. The cubic root of 3686838 is about 154.4844194131.

The spelling of 3686838 in words is "three million, six hundred eighty-six thousand, eight hundred thirty-eight".