3878867 has 2 divisors, whose sum is σ = 3878868. Its totient is φ = 3878866.

The previous prime is 3878843. The next prime is 3878879. The reversal of 3878867 is 7688783.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3878867 - 2²⁰ = 2830291 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3878267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1939433 + 1939434.

It is an arithmetic number, because the mean of its divisors is an integer number (1939434).

Almost surely, 2^3878867 is an apocalyptic number.

3878867 is a deficient number, since it is larger than the sum of its proper divisors (1).

3878867 is an equidigital number, since it uses as much as digits as its factorization.

3878867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 451584, while the sum is 47.

The square root of 3878867 is about 1969.4839425596. The cubic root of 3878867 is about 157.1212635028.

The spelling of 3878867 in words is "three million, eight hundred seventy-eight thousand, eight hundred sixty-seven".