3981910 has 32 divisors (see below), whose sum is σ = 7737120. Its totient is φ = 1469952.

The previous prime is 3981899. The next prime is 3981911. The reversal of 3981910 is 191893.

3981910 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3981911) 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 15 ways as a sum of consecutive naturals, for example, 9832 + ... + 10228.

It is an arithmetic number, because the mean of its divisors is an integer number (241785).

Almost surely, 2^3981910 is an apocalyptic number.

3981910 is a deficient number, since it is larger than the sum of its proper divisors (3755210).

3981910 is a wasteful number, since it uses less digits than its factorization.

3981910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480.

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 3981910 is about 1995.4723751533. The cubic root of 3981910 is about 158.5004428333.

The spelling of 3981910 in words is "three million, nine hundred eighty-one thousand, nine hundred ten".