447998461 has 2 divisors, whose sum is σ = 447998462. Its totient is φ = 447998460.

The previous prime is 447998437. The next prime is 447998489. The reversal of 447998461 is 164899744.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 441798361 + 6200100 = 21019^2 + 2490^2 .

It is a cyclic number.

It is not a de Polignac number, because 447998461 - 2⁵ = 447998429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 447998399 and 447998408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (447998561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223999230 + 223999231.

It is an arithmetic number, because the mean of its divisors is an integer number (223999231).

Almost surely, 2^447998461 is an apocalyptic number.

It is an amenable number.

447998461 is a deficient number, since it is larger than the sum of its proper divisors (1).

447998461 is an equidigital number, since it uses as much as digits as its factorization.

447998461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 52.

The square root of 447998461 is about 21165.9741330278. The cubic root of 447998461 is about 765.1715969172.

The spelling of 447998461 in words is "four hundred forty-seven million, nine hundred ninety-eight thousand, four hundred sixty-one".