447863863 has 2 divisors, whose sum is σ = 447863864. Its totient is φ = 447863862.

The previous prime is 447863837. The next prime is 447863903. The reversal of 447863863 is 368368744.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-447863863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (447863803) 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, 223931931 + 223931932.

It is an arithmetic number, because the mean of its divisors is an integer number (223931932).

Almost surely, 2^447863863 is an apocalyptic number.

447863863 is a deficient number, since it is larger than the sum of its proper divisors (1).

447863863 is an equidigital number, since it uses as much as digits as its factorization.

447863863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2322432, while the sum is 49.

The square root of 447863863 is about 21162.7943098259. The cubic root of 447863863 is about 765.0949590924.

The spelling of 447863863 in words is "four hundred forty-seven million, eight hundred sixty-three thousand, eight hundred sixty-three".