3871278 has 24 divisors (see below), whose sum is σ = 8424000. Its totient is φ = 1284864.

The previous prime is 3871271. The next prime is 3871303. The reversal of 3871278 is 8721783.

3871278 is a `hidden beast` number, since 387 + 1 + 278 = 666.

3871278 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 (3871271) 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 11 ways as a sum of consecutive naturals, for example, 7843 + ... + 8321.

It is an arithmetic number, because the mean of its divisors is an integer number (351000).

Almost surely, 2^3871278 is an apocalyptic number.

3871278 is an abundant number, since it is smaller than the sum of its proper divisors (4552722).

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

3871278 is a wasteful number, since it uses less digits than its factorization.

3871278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936 (or 933 counting only the distinct ones).

The product of its digits is 18816, while the sum is 36.

The square root of 3871278 is about 1967.5563524331. The cubic root of 3871278 is about 157.0187273967.

The spelling of 3871278 in words is "three million, eight hundred seventy-one thousand, two hundred seventy-eight".