71011671 has 4 divisors (see below), whose sum is σ = 94682232. Its totient is φ = 47341112.

The previous prime is 71011667. The next prime is 71011687. The reversal of 71011671 is 17611017.

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 71011671 - 2² = 71011667 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71011651) 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, 11835276 + ... + 11835281.

It is an arithmetic number, because the mean of its divisors is an integer number (23670558).

Almost surely, 2^71011671 is an apocalyptic number.

71011671 is a deficient number, since it is larger than the sum of its proper divisors (23670561).

71011671 is a wasteful number, since it uses less digits than its factorization.

71011671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23670560.

The product of its (nonzero) digits is 294, while the sum is 24.

The square root of 71011671 is about 8426.8422911551. The cubic root of 71011671 is about 414.1044626588.

Adding to 71011671 its reverse (17611017), we get a palindrome (88622688).

The spelling of 71011671 in words is "seventy-one million, eleven thousand, six hundred seventy-one".