3981486 has 8 divisors (see below), whose sum is σ = 7962984. Its totient is φ = 1327160.

The previous prime is 3981479. The next prime is 3981491. The reversal of 3981486 is 6841893.

3981486 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

3981486 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 331785 + ... + 331796.

It is an arithmetic number, because the mean of its divisors is an integer number (995373).

Almost surely, 2^3981486 is an apocalyptic number.

3981486 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3981486 is a wasteful number, since it uses less digits than its factorization.

3981486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663586.

The product of its digits is 41472, while the sum is 39.

The square root of 3981486 is about 1995.3661318164. The cubic root of 3981486 is about 158.4948168420.

The spelling of 3981486 in words is "three million, nine hundred eighty-one thousand, four hundred eighty-six".