71791068 has 72 divisors (see below), whose sum is σ = 180447232. Its totient is φ = 22208256.

The previous prime is 71791061. The next prime is 71791079. The reversal of 71791068 is 86019717.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71791061) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 440355 + ... + 440517.

Almost surely, 2^71791068 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 71791068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90223616).

71791068 is an abundant number, since it is smaller than the sum of its proper divisors (108656164).

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

71791068 is a wasteful number, since it uses less digits than its factorization.

71791068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331 (or 312 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 39.

The square root of 71791068 is about 8472.9609936551. The cubic root of 71791068 is about 415.6139709738.

The spelling of 71791068 in words is "seventy-one million, seven hundred ninety-one thousand, sixty-eight".