3981877 has 8 divisors (see below), whose sum is σ = 4087616. Its totient is φ = 3877632.

The previous prime is 3981871. The next prime is 3981881. The reversal of 3981877 is 7781893.

3981877 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.

It is a cyclic number.

It is not a de Polignac number, because 3981877 - 2³ = 3981869 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3981871) 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, 6613 + ... + 7189.

It is an arithmetic number, because the mean of its divisors is an integer number (510952).

Almost surely, 2^3981877 is an apocalyptic number.

It is an amenable number.

3981877 is a deficient number, since it is larger than the sum of its proper divisors (105739).

3981877 is a wasteful number, since it uses less digits than its factorization.

3981877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747.

The product of its digits is 84672, while the sum is 43.

The square root of 3981877 is about 1995.4641064174. The cubic root of 3981877 is about 158.5000049757.

The spelling of 3981877 in words is "three million, nine hundred eighty-one thousand, eight hundred seventy-seven".