3986208 has 36 divisors (see below), whose sum is σ = 11336598. Its totient is φ = 1328640.

The previous prime is 3986207. The next prime is 3986209. The reversal of 3986208 is 8026893.

It is an interprime number because it is at equal distance from previous prime (3986207) and next prime (3986209).

It can be written as a sum of positive squares in only one way, i.e., 3640464 + 345744 = 1908^2 + 588^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3986201) 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, 6633 + ... + 7208.

Almost surely, 2^3986208 is an apocalyptic number.

It is an amenable number.

3986208 is an abundant number, since it is smaller than the sum of its proper divisors (7350390).

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

3986208 is a wasteful number, since it uses less digits than its factorization.

3986208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13857 (or 13846 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 3986208 is about 1996.5490226889. The cubic root of 3986208 is about 158.5574498095.

The spelling of 3986208 in words is "three million, nine hundred eighty-six thousand, two hundred eight".