3886506 has 48 divisors (see below), whose sum is σ = 9611784. Its totient is φ = 1124352.

The previous prime is 3886481. The next prime is 3886537. The reversal of 3886506 is 6056883.

It can be written as a sum of positive squares in 4 ways, for example, as 3767481 + 119025 = 1941^2 + 345^2 .

It is a Curzon number.

It is an unprimeable number.

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, 3490 + ... + 4466.

Almost surely, 2^3886506 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3886506, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4805892).

3886506 is an abundant number, since it is smaller than the sum of its proper divisors (5725278).

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

3886506 is a wasteful number, since it uses less digits than its factorization.

3886506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015 (or 1012 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 3886506 is about 1971.4223291827. The cubic root of 3886506 is about 157.2243401893.

The spelling of 3886506 in words is "three million, eight hundred eighty-six thousand, five hundred six".