3984679 has 2 divisors, whose sum is σ = 3984680. Its totient is φ = 3984678.

The previous prime is 3984677. The next prime is 3984731. The reversal of 3984679 is 9764893.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3984679 - 2¹ = 3984677 is a prime.

Together with 3984677, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3984677) 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, 1992339 + 1992340.

It is an arithmetic number, because the mean of its divisors is an integer number (1992340).

Almost surely, 2^3984679 is an apocalyptic number.

3984679 is a deficient number, since it is larger than the sum of its proper divisors (1).

3984679 is an equidigital number, since it uses as much as digits as its factorization.

3984679 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 3984679 is about 1996.1660752553. The cubic root of 3984679 is about 158.5371744547.

The spelling of 3984679 in words is "three million, nine hundred eighty-four thousand, six hundred seventy-nine".