3946879 has 2 divisors, whose sum is σ = 3946880. Its totient is φ = 3946878.

The previous prime is 3946853. The next prime is 3946913. The reversal of 3946879 is 9786493.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3946879 - 2¹⁵ = 3914111 is a prime.

It is a Chen prime.

3946879 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3946829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1973439 + 1973440.

It is an arithmetic number, because the mean of its divisors is an integer number (1973440).

Almost surely, 2^3946879 is an apocalyptic number.

3946879 is a deficient number, since it is larger than the sum of its proper divisors (1).

3946879 is an equidigital number, since it uses as much as digits as its factorization.

3946879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 46.

The square root of 3946879 is about 1986.6753635156. The cubic root of 3946879 is about 158.0342685911.

It can be divided in two parts, 39 and 46879, that multiplied together give a palindrome (1828281).

The spelling of 3946879 in words is "three million, nine hundred forty-six thousand, eight hundred seventy-nine".