3986676 has 72 divisors (see below), whose sum is σ = 10747464. Its totient is φ = 1244160.

The previous prime is 3986669. The next prime is 3986677. The reversal of 3986676 is 6766893.

It can be written as a sum of positive squares in 4 ways, for example, as 527076 + 3459600 = 726^2 + 1860^2 .

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3986677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54576 + ... + 54648.

Almost surely, 2^3986676 is an apocalyptic number.

3986676 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 3986676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5373732).

3986676 is an abundant number, since it is smaller than the sum of its proper divisors (6760788).

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

3986676 is a wasteful number, since it uses less digits than its factorization.

3986676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161 (or 156 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 3986676 is about 1996.6662214802. Note that the first 3 decimals coincide. The cubic root of 3986676 is about 158.5636547026.

The spelling of 3986676 in words is "three million, nine hundred eighty-six thousand, six hundred seventy-six".