3871790 has 48 divisors (see below), whose sum is σ = 7905600. Its totient is φ = 1362816.

The previous prime is 3871787. The next prime is 3871811. The reversal of 3871790 is 971783.

3871790 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3871790.

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 23 ways as a sum of consecutive naturals, for example, 48971 + ... + 49049.

It is an arithmetic number, because the mean of its divisors is an integer number (164700).

Almost surely, 2^3871790 is an apocalyptic number.

3871790 is an abundant number, since it is smaller than the sum of its proper divisors (4033810).

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

3871790 is a wasteful number, since it uses less digits than its factorization.

3871790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141 (or 128 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 3871790 is about 1967.6864587632. The cubic root of 3871790 is about 157.0256493180.

The spelling of 3871790 in words is "three million, eight hundred seventy-one thousand, seven hundred ninety".