3686028 has 12 divisors (see below), whose sum is σ = 8600760. Its totient is φ = 1228672.

The previous prime is 3686027. The next prime is 3686029. The reversal of 3686028 is 8206863.

3686028 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3686027) and next prime (3686029).

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 3686028.

It is not an unprimeable number, because it can be changed into a prime (3686027) 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, 153573 + ... + 153596.

It is an arithmetic number, because the mean of its divisors is an integer number (716730).

Almost surely, 2^3686028 is an apocalyptic number.

It is an amenable number.

3686028 is an abundant number, since it is smaller than the sum of its proper divisors (4914732).

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

3686028 is a wasteful number, since it uses less digits than its factorization.

3686028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307176 (or 307174 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 3686028 is about 1919.9031225559. The cubic root of 3686028 is about 154.4731051519.

The spelling of 3686028 in words is "three million, six hundred eighty-six thousand, twenty-eight".