448964561 has 2 divisors, whose sum is σ = 448964562. Its totient is φ = 448964560.

The previous prime is 448964557. The next prime is 448964567. The reversal of 448964561 is 165469844.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 372297025 + 76667536 = 19295^2 + 8756^2 .

It is a cyclic number.

It is not a de Polignac number, because 448964561 - 2² = 448964557 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (448964567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224482280 + 224482281.

It is an arithmetic number, because the mean of its divisors is an integer number (224482281).

Almost surely, 2^448964561 is an apocalyptic number.

It is an amenable number.

448964561 is a deficient number, since it is larger than the sum of its proper divisors (1).

448964561 is an equidigital number, since it uses as much as digits as its factorization.

448964561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 829440, while the sum is 47.

The square root of 448964561 is about 21188.7838490084. The cubic root of 448964561 is about 765.7212279239.

The spelling of 448964561 in words is "four hundred forty-eight million, nine hundred sixty-four thousand, five hundred sixty-one".