447246979 has 2 divisors, whose sum is σ = 447246980. Its totient is φ = 447246978.

The previous prime is 447246959. The next prime is 447247001. The reversal of 447246979 is 979642744.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 447246979 - 2⁷ = 447246851 is a prime.

It is not a weakly prime, because it can be changed into another prime (447246959) 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, 223623489 + 223623490.

It is an arithmetic number, because the mean of its divisors is an integer number (223623490).

Almost surely, 2^447246979 is an apocalyptic number.

447246979 is a deficient number, since it is larger than the sum of its proper divisors (1).

447246979 is an equidigital number, since it uses as much as digits as its factorization.

447246979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3048192, while the sum is 52.

The square root of 447246979 is about 21148.2145582080. The cubic root of 447246979 is about 764.7435191856.

The spelling of 447246979 in words is "four hundred forty-seven million, two hundred forty-six thousand, nine hundred seventy-nine".