447646401 has 12 divisors (see below), whose sum is σ = 674713728. Its totient is φ = 285455544.

The previous prime is 447646391. The next prime is 447646421. The reversal of 447646401 is 104646744.

447646401 is a `hidden beast` number, since 4 + 4 + 7 + 6 + 4 + 640 + 1 = 666.

It is not a de Polignac number, because 447646401 - 2⁶ = 447646337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (447646421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1081065 + ... + 1081478.

It is an arithmetic number, because the mean of its divisors is an integer number (56226144).

Almost surely, 2^447646401 is an apocalyptic number.

It is an amenable number.

447646401 is a deficient number, since it is larger than the sum of its proper divisors (227067327).

447646401 is a wasteful number, since it uses less digits than its factorization.

447646401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2162572 (or 2162569 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The square root of 447646401 is about 21157.6558484157. The cubic root of 447646401 is about 764.9711074568.

The spelling of 447646401 in words is "four hundred forty-seven million, six hundred forty-six thousand, four hundred one".