71885672 has 32 divisors (see below), whose sum is σ = 144460800. Its totient is φ = 33447744.

The previous prime is 71885663. The next prime is 71885687. The reversal of 71885672 is 27658817.

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 7 ways as a sum of consecutive naturals, for example, 1529 + ... + 12087.

It is an arithmetic number, because the mean of its divisors is an integer number (4514400).

Almost surely, 2^71885672 is an apocalyptic number.

It is an amenable number.

71885672 is an abundant number, since it is smaller than the sum of its proper divisors (72575128).

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

71885672 is a wasteful number, since it uses less digits than its factorization.

71885672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10625 (or 10621 counting only the distinct ones).

The product of its digits is 188160, while the sum is 44.

The square root of 71885672 is about 8478.5418557674. The cubic root of 71885672 is about 415.7964518258.

The spelling of 71885672 in words is "seventy-one million, eight hundred eighty-five thousand, six hundred seventy-two".