71216208 has 90 divisors (see below), whose sum is σ = 231869274. Its totient is φ = 20345472.

The previous prime is 71216183. The next prime is 71216239. The reversal of 71216208 is 80261217.

It can be written as a sum of positive squares in only one way, i.e., 61027344 + 10188864 = 7812^2 + 3192^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2010 + ... + 12102.

Almost surely, 2^71216208 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 71216208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115934637).

71216208 is an abundant number, since it is smaller than the sum of its proper divisors (160653066).

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

71216208 is a wasteful number, since it uses less digits than its factorization.

71216208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10121 (or 10105 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 71216208 is about 8438.9696053487. The cubic root of 71216208 is about 414.5016672881.

The spelling of 71216208 in words is "seventy-one million, two hundred sixteen thousand, two hundred eight".