447641071 has 4 divisors (see below), whose sum is σ = 463077000. Its totient is φ = 432205144.

The previous prime is 447641053. The next prime is 447641087. The reversal of 447641071 is 170146744.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 447641071 - 2⁷ = 447640943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447641171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7717921 + ... + 7717978.

It is an arithmetic number, because the mean of its divisors is an integer number (115769250).

Almost surely, 2^447641071 is an apocalyptic number.

447641071 is a deficient number, since it is larger than the sum of its proper divisors (15435929).

447641071 is a wasteful number, since it uses less digits than its factorization.

447641071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15435928.

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 447641071 is about 21157.5298889072. The cubic root of 447641071 is about 764.9680713460.

The spelling of 447641071 in words is "four hundred forty-seven million, six hundred forty-one thousand, seventy-one".