4220946979 has 2 divisors, whose sum is σ = 4220946980. Its totient is φ = 4220946978.

The previous prime is 4220946967. The next prime is 4220947043. The reversal of 4220946979 is 9796490224.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4220946979 is a prime.

It is not a weakly prime, because it can be changed into another prime (4220946929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2110473489 + 2110473490.

It is an arithmetic number, because the mean of its divisors is an integer number (2110473490).

Almost surely, 2^4220946979 is an apocalyptic number.

4220946979 is a deficient number, since it is larger than the sum of its proper divisors (1).

4220946979 is an equidigital number, since it uses as much as digits as its factorization.

4220946979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1959552, while the sum is 52.

The square root of 4220946979 is about 64968.8154347915. The cubic root of 4220946979 is about 1616.1064576052.

The spelling of 4220946979 in words is "four billion, two hundred twenty million, nine hundred forty-six thousand, nine hundred seventy-nine".