3866879 has 2 divisors, whose sum is σ = 3866880. Its totient is φ = 3866878.

The previous prime is 3866869. The next prime is 3866881. The reversal of 3866879 is 9786683.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3866879 - 2⁸ = 3866623 is a prime.

Together with 3866881, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3866809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1933439 + 1933440.

It is an arithmetic number, because the mean of its divisors is an integer number (1933440).

Almost surely, 2^3866879 is an apocalyptic number.

3866879 is a deficient number, since it is larger than the sum of its proper divisors (1).

3866879 is an equidigital number, since it uses as much as digits as its factorization.

3866879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 47.

The square root of 3866879 is about 1966.4381505656. The cubic root of 3866879 is about 156.9592304920.

The spelling of 3866879 in words is "three million, eight hundred sixty-six thousand, eight hundred seventy-nine".