71012717 has 4 divisors (see below), whose sum is σ = 71531196. Its totient is φ = 70494240.

The previous prime is 71012699. The next prime is 71012719. The reversal of 71012717 is 71721017.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71721017 = 7433 ⋅9649.

It can be written as a sum of positive squares in 2 ways, for example, as 51423241 + 19589476 = 7171^2 + 4426^2 .

It is a cyclic number.

It is not a de Polignac number, because 71012717 - 2⁶ = 71012653 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 (71012719) 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, 259034 + ... + 259307.

It is an arithmetic number, because the mean of its divisors is an integer number (17882799).

Almost surely, 2^71012717 is an apocalyptic number.

It is an amenable number.

71012717 is a deficient number, since it is larger than the sum of its proper divisors (518479).

71012717 is a wasteful number, since it uses less digits than its factorization.

71012717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518478.

The product of its (nonzero) digits is 686, while the sum is 26.

The square root of 71012717 is about 8426.9043545065. The cubic root of 71012717 is about 414.1064958980.

Adding to 71012717 its product of nonzero digits (686), we get a triangular number (71013403 = T₁₁₉₁₇).

The spelling of 71012717 in words is "seventy-one million, twelve thousand, seven hundred seventeen".