447396081 has 8 divisors (see below), whose sum is σ = 650757984. Its totient is φ = 271149120.

The previous prime is 447396077. The next prime is 447396091. The reversal of 447396081 is 180693744.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 447396081 - 2² = 447396077 is a prime.

It is a super-2 number, since 2×447396081² = 400326506588317122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (447396011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6778696 + ... + 6778761.

It is an arithmetic number, because the mean of its divisors is an integer number (81344748).

Almost surely, 2^447396081 is an apocalyptic number.

It is an amenable number.

447396081 is a deficient number, since it is larger than the sum of its proper divisors (203361903).

447396081 is a wasteful number, since it uses less digits than its factorization.

447396081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13557471.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 447396081 is about 21151.7394320184. The cubic root of 447396081 is about 764.8284924590.

The spelling of 447396081 in words is "four hundred forty-seven million, three hundred ninety-six thousand, eighty-one".