71247671 has 8 divisors (see below), whose sum is σ = 77900304. Its totient is φ = 64624320.

The previous prime is 71247653. The next prime is 71247707. The reversal of 71247671 is 17674217.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71247671 - 2¹⁰ = 71246647 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 (71247871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2060 + ... + 12113.

It is an arithmetic number, because the mean of its divisors is an integer number (9737538).

Almost surely, 2^71247671 is an apocalyptic number.

71247671 is a deficient number, since it is larger than the sum of its proper divisors (6652633).

71247671 is a wasteful number, since it uses less digits than its factorization.

71247671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14641.

The product of its digits is 16464, while the sum is 35.

The square root of 71247671 is about 8440.8335488860. The cubic root of 71247671 is about 414.5626999577.

It can be divided in two parts, 71 and 247671, that added together give a palindrome (247742).

The spelling of 71247671 in words is "seventy-one million, two hundred forty-seven thousand, six hundred seventy-one".