3982661 has 8 divisors (see below), whose sum is σ = 4089240. Its totient is φ = 3877632.

The previous prime is 3982631. The next prime is 3982679. The reversal of 3982661 is 1662893.

3982661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 42436 + 3940225 = 206^2 + 1985^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3982661 - 2⁶ = 3982597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3982631) 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 7 ways as a sum of consecutive naturals, for example, 6191 + ... + 6803.

It is an arithmetic number, because the mean of its divisors is an integer number (511155).

Almost surely, 2^3982661 is an apocalyptic number.

It is an amenable number.

3982661 is a deficient number, since it is larger than the sum of its proper divisors (106579).

3982661 is an equidigital number, since it uses as much as digits as its factorization.

3982661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775.

The product of its digits is 15552, while the sum is 35.

The square root of 3982661 is about 1995.6605422767. The cubic root of 3982661 is about 158.5104067576.

The spelling of 3982661 in words is "three million, nine hundred eighty-two thousand, six hundred sixty-one".