671413271 has 4 divisors (see below), whose sum is σ = 674026032. Its totient is φ = 668800512.

The previous prime is 671413219. The next prime is 671413297. The reversal of 671413271 is 172314176.

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 671413271 - 2⁶ = 671413207 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 (671413201) 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, 1305995 + ... + 1306508.

It is an arithmetic number, because the mean of its divisors is an integer number (168506508).

Almost surely, 2^671413271 is an apocalyptic number.

671413271 is a deficient number, since it is larger than the sum of its proper divisors (2612761).

671413271 is a wasteful number, since it uses less digits than its factorization.

671413271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2612760.

The product of its digits is 7056, while the sum is 32.

The square root of 671413271 is about 25911.6435410801. The cubic root of 671413271 is about 875.6488340200.

The spelling of 671413271 in words is "six hundred seventy-one million, four hundred thirteen thousand, two hundred seventy-one".