3986136 has 96 divisors (see below), whose sum is σ = 13478400. Its totient is φ = 1033920.

The previous prime is 3986113. The next prime is 3986159. The reversal of 3986136 is 6316893.

It is a happy number.

3986136 is a `hidden beast` number, since 39 + 8 + 613 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (3986113) and next prime (3986159).

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

It is a nude number because it is divisible by every one of its digits.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 3986136.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5185 + ... + 5903.

It is an arithmetic number, because the mean of its divisors is an integer number (140400).

Almost surely, 2^3986136 is an apocalyptic number.

3986136 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3986136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6739200).

3986136 is an abundant number, since it is smaller than the sum of its proper divisors (9492264).

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

3986136 is a wasteful number, since it uses less digits than its factorization.

3986136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749 (or 742 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 3986136 is about 1996.5309914950. The cubic root of 3986136 is about 158.5564951675.

The spelling of 3986136 in words is "three million, nine hundred eighty-six thousand, one hundred thirty-six".