71061712 has 10 divisors (see below), whose sum is σ = 137682098. Its totient is φ = 35530848.

The previous prime is 71061701. The next prime is 71061713. The reversal of 71061712 is 21716017.

It can be written as a sum of positive squares in only one way, i.e., 62157456 + 8904256 = 7884^2 + 2984^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71061713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2220663 + ... + 2220694.

Almost surely, 2^71061712 is an apocalyptic number.

It is an amenable number.

71061712 is a deficient number, since it is larger than the sum of its proper divisors (66620386).

71061712 is a wasteful number, since it uses less digits than its factorization.

71061712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4441365 (or 4441359 counting only the distinct ones).

The product of its (nonzero) digits is 588, while the sum is 25.

The square root of 71061712 is about 8429.8109112838. The cubic root of 71061712 is about 414.2017111602.

Adding to 71061712 its reverse (21716017), we get a palindrome (92777729).

The spelling of 71061712 in words is "seventy-one million, sixty-one thousand, seven hundred twelve".