71671 has 2 divisors, whose sum is σ = 71672. Its totient is φ = 71670.
The previous prime is 71663. The next prime is 71693. The reversal of 71671 is 17617.
It is an a-pointer prime, because the next prime (71693) can be obtained adding 71671 to its sum of digits (22).
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 71671 - 23 = 71663 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (71171) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35835 + 35836.
It is an arithmetic number, because the mean of its divisors is an integer number (35836).
271671 is an apocalyptic number.
71671 is a deficient number, since it is larger than the sum of its proper divisors (1).
71671 is an equidigital number, since it uses as much as digits as its factorization.
71671 is an evil number, because the sum of its binary digits is even.
The product of its digits is 294, while the sum is 22.
The square root of 71671 is about 267.7144000610. The cubic root of 71671 is about 41.5382141837.
It can be divided in two parts, 716 and 71, that added together give a palindrome (787).
The spelling of 71671 in words is "seventy-one thousand, six hundred seventy-one".
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