671471447 has 16 divisors (see below), whose sum is σ = 693332640. Its totient is φ = 650073600.

The previous prime is 671471443. The next prime is 671471459. The reversal of 671471447 is 744174176.

671471447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 671471447 - 2² = 671471443 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 (671471441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1175672 + ... + 1176242.

It is an arithmetic number, because the mean of its divisors is an integer number (43333290).

Almost surely, 2^671471447 is an apocalyptic number.

671471447 is a deficient number, since it is larger than the sum of its proper divisors (21861193).

671471447 is a wasteful number, since it uses less digits than its factorization.

671471447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914.

The product of its digits is 131712, while the sum is 41.

The square root of 671471447 is about 25912.7661009009. The cubic root of 671471447 is about 875.6741240947.

The spelling of 671471447 in words is "six hundred seventy-one million, four hundred seventy-one thousand, four hundred forty-seven".