71013760 has 128 divisors (see below), whose sum is σ = 184407840. Its totient is φ = 26050560.

The previous prime is 71013751. The next prime is 71013781. The reversal of 71013760 is 6731017.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 663627 + ... + 663733.

Almost surely, 2^71013760 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71013760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92203920).

71013760 is an abundant number, since it is smaller than the sum of its proper divisors (113394080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71013760 is a wasteful number, since it uses less digits than its factorization.

71013760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204 (or 192 counting only the distinct ones).

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

The square root of 71013760 is about 8426.9662394007. The cubic root of 71013760 is about 414.1085232859.

Adding to 71013760 its reverse (6731017), we get a palindrome (77744777).

The spelling of 71013760 in words is "seventy-one million, thirteen thousand, seven hundred sixty".