671271560 has 32 divisors (see below), whose sum is σ = 1576031040. Its totient is φ = 256833984.

The previous prime is 671271529. The next prime is 671271569. The reversal of 671271560 is 65172176.

671271560 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 671271560.

It is not an unprimeable number, because it can be changed into a prime (671271569) 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, 363902 + ... + 365741.

It is an arithmetic number, because the mean of its divisors is an integer number (49250970).

Almost surely, 2^671271560 is an apocalyptic number.

It is an amenable number.

671271560 is an abundant number, since it is smaller than the sum of its proper divisors (904759480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

671271560 is a wasteful number, since it uses less digits than its factorization.

671271560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729677 (or 729673 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 671271560 is about 25908.9088925026. The cubic root of 671271560 is about 875.5872237776.

The spelling of 671271560 in words is "six hundred seventy-one million, two hundred seventy-one thousand, five hundred sixty".