3686238 has 12 divisors (see below), whose sum is σ = 7986888. Its totient is φ = 1228740.

The previous prime is 3686237. The next prime is 3686239. The reversal of 3686238 is 8326863.

It is an interprime number because it is at equal distance from previous prime (3686237) and next prime (3686239).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3686237) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 102378 + ... + 102413.

It is an arithmetic number, because the mean of its divisors is an integer number (665574).

Almost surely, 2^3686238 is an apocalyptic number.

3686238 is an abundant number, since it is smaller than the sum of its proper divisors (4300650).

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

3686238 is a wasteful number, since it uses less digits than its factorization.

3686238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204799 (or 204796 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 3686238 is about 1919.9578120365. The cubic root of 3686238 is about 154.4760386380.

The spelling of 3686238 in words is "three million, six hundred eighty-six thousand, two hundred thirty-eight".