71047888 has 20 divisors (see below), whose sum is σ = 137803680. Its totient is φ = 35485664.

The previous prime is 71047861. The next prime is 71047891. The reversal of 71047888 is 88874017.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 18381 + ... + 21907.

It is an arithmetic number, because the mean of its divisors is an integer number (6890184).

Almost surely, 2^71047888 is an apocalyptic number.

It is an amenable number.

71047888 is a deficient number, since it is larger than the sum of its proper divisors (66755792).

71047888 is a wasteful number, since it uses less digits than its factorization.

71047888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4794 (or 4788 counting only the distinct ones).

The product of its (nonzero) digits is 100352, while the sum is 43.

The square root of 71047888 is about 8428.9909241854. The cubic root of 71047888 is about 414.1748504893.

The spelling of 71047888 in words is "seventy-one million, forty-seven thousand, eight hundred eighty-eight".