71216808 has 128 divisors (see below), whose sum is σ = 210470400. Its totient is φ = 19869696.

The previous prime is 71216777. The next prime is 71216813. The reversal of 71216808 is 80861217.

It is a happy number.

71216808 is nontrivially palindromic in base 11.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 153585 + ... + 154047.

It is an arithmetic number, because the mean of its divisors is an integer number (1644300).

Almost surely, 2^71216808 is an apocalyptic number.

71216808 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71216808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105235200).

71216808 is an abundant number, since it is smaller than the sum of its proper divisors (139253592).

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

71216808 is a wasteful number, since it uses less digits than its factorization.

71216808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531 (or 527 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 33.

The square root of 71216808 is about 8439.0051546376. The cubic root of 71216808 is about 414.5028313503.

The spelling of 71216808 in words is "seventy-one million, two hundred sixteen thousand, eight hundred eight".