3981546 has 12 divisors (see below), whose sum is σ = 8626722. Its totient is φ = 1327176.

The previous prime is 3981541. The next prime is 3981563. The reversal of 3981546 is 6451893.

3981546 is a `hidden beast` number, since 39 + 81 + 546 = 666.

3981546 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 only one way, i.e., 3980025 + 1521 = 1995^2 + 39^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3981546.

It is not an unprimeable number, because it can be changed into a prime (3981541) 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 5 ways as a sum of consecutive naturals, for example, 110581 + ... + 110616.

Almost surely, 2^3981546 is an apocalyptic number.

3981546 is an abundant number, since it is smaller than the sum of its proper divisors (4645176).

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

3981546 is a wasteful number, since it uses less digits than its factorization.

3981546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221205 (or 221202 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 3981546 is about 1995.3811665945. The cubic root of 3981546 is about 158.4956129971.

The spelling of 3981546 in words is "three million, nine hundred eighty-one thousand, five hundred forty-six".