3866878 has 16 divisors (see below), whose sum is σ = 6119424. Its totient is φ = 1829880.

The previous prime is 3866869. The next prime is 3866879. The reversal of 3866878 is 8786683.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3866879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2251 + ... + 3577.

It is an arithmetic number, because the mean of its divisors is an integer number (382464).

Almost surely, 2^3866878 is an apocalyptic number.

3866878 is a deficient number, since it is larger than the sum of its proper divisors (2252546).

3866878 is a wasteful number, since it uses less digits than its factorization.

3866878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1407.

The product of its digits is 387072, while the sum is 46.

The square root of 3866878 is about 1966.4378962988. The cubic root of 3866878 is about 156.9592169618.

The spelling of 3866878 in words is "three million, eight hundred sixty-six thousand, eight hundred seventy-eight".