3881878 has 48 divisors (see below), whose sum is σ = 7986384. Its totient is φ = 1391040.

The previous prime is 3881873. The next prime is 3881887. The reversal of 3881878 is 8781883.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3881873) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13876 + ... + 14152.

It is an arithmetic number, because the mean of its divisors is an integer number (166383).

Almost surely, 2^3881878 is an apocalyptic number.

3881878 is an abundant number, since it is smaller than the sum of its proper divisors (4104506).

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

3881878 is a wasteful number, since it uses less digits than its factorization.

3881878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317 (or 310 counting only the distinct ones).

The product of its digits is 86016, while the sum is 43.

The square root of 3881878 is about 1970.2482077139. The cubic root of 3881878 is about 157.1619085127.

The spelling of 3881878 in words is "three million, eight hundred eighty-one thousand, eight hundred seventy-eight".