71347871 has 12 divisors (see below), whose sum is σ = 83515032. Its totient is φ = 60773328.

The previous prime is 71347853. The next prime is 71347873. The reversal of 71347871 is 17874317.

It is a de Polignac number, because none of the positive numbers 2^k-71347871 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 (71347873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3521 + ... + 12453.

It is an arithmetic number, because the mean of its divisors is an integer number (6959586).

Almost surely, 2^71347871 is an apocalyptic number.

71347871 is a deficient number, since it is larger than the sum of its proper divisors (12167161).

71347871 is a wasteful number, since it uses less digits than its factorization.

71347871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9110 (or 9103 counting only the distinct ones).

The product of its digits is 32928, while the sum is 38.

The square root of 71347871 is about 8446.7668962746. The cubic root of 71347871 is about 414.7569506333.

It can be divided in two parts, 713 and 47871, that added together give a palindrome (48584).

The spelling of 71347871 in words is "seventy-one million, three hundred forty-seven thousand, eight hundred seventy-one".