71885216 has 24 divisors (see below), whose sum is σ = 152411364. Its totient is φ = 33177600.

The previous prime is 71885183. The next prime is 71885237. The reversal of 71885216 is 61258817.

It can be written as a sum of positive squares in 2 ways, for example, as 70492816 + 1392400 = 8396^2 + 1180^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 71885216.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85985 + ... + 86816.

Almost surely, 2^71885216 is an apocalyptic number.

It is an amenable number.

71885216 is an abundant number, since it is smaller than the sum of its proper divisors (80526148).

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

71885216 is a wasteful number, since it uses less digits than its factorization.

71885216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172824 (or 172816 counting only the distinct ones).

The product of its digits is 26880, while the sum is 38.

The square root of 71885216 is about 8478.5149643083. The cubic root of 71885216 is about 415.7955726353.

The spelling of 71885216 in words is "seventy-one million, eight hundred eighty-five thousand, two hundred sixteen".