447064489 has 2 divisors, whose sum is σ = 447064490. Its totient is φ = 447064488.

The previous prime is 447064459. The next prime is 447064529. The reversal of 447064489 is 984460744.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 349054489 + 98010000 = 18683^2 + 9900^2 .

It is a cyclic number.

It is not a de Polignac number, because 447064489 - 2¹⁹ = 446540201 is a prime.

It is a super-2 number, since 2×447064489² = 399733314649662242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (447064459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223532244 + 223532245.

It is an arithmetic number, because the mean of its divisors is an integer number (223532245).

Almost surely, 2^447064489 is an apocalyptic number.

It is an amenable number.

447064489 is a deficient number, since it is larger than the sum of its proper divisors (1).

447064489 is an equidigital number, since it uses as much as digits as its factorization.

447064489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 774144, while the sum is 46.

The square root of 447064489 is about 21143.8995693793. The cubic root of 447064489 is about 764.6394923750.

The spelling of 447064489 in words is "four hundred forty-seven million, sixty-four thousand, four hundred eighty-nine".