71311327 has 4 divisors (see below), whose sum is σ = 71977896. Its totient is φ = 70644760.

The previous prime is 71311307. The next prime is 71311333. The reversal of 71311327 is 72311317.

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 71311327 - 2¹¹ = 71309279 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 (71311307) 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, 333124 + ... + 333337.

It is an arithmetic number, because the mean of its divisors is an integer number (17994474).

Almost surely, 2^71311327 is an apocalyptic number.

71311327 is a deficient number, since it is larger than the sum of its proper divisors (666569).

71311327 is a wasteful number, since it uses less digits than its factorization.

71311327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666568.

The product of its digits is 882, while the sum is 25.

The square root of 71311327 is about 8444.6034246731. The cubic root of 71311327 is about 414.6861264387.

The spelling of 71311327 in words is "seventy-one million, three hundred eleven thousand, three hundred twenty-seven".