71178896 has 20 divisors (see below), whose sum is σ = 138077100. Its totient is φ = 35546112.

The previous prime is 71178827. The next prime is 71178901. The reversal of 71178896 is 69887117.

It can be written as a sum of positive squares in 2 ways, for example, as 12503296 + 58675600 = 3536^2 + 7660^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 71178896.

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, 13940 + ... + 18348.

It is an arithmetic number, because the mean of its divisors is an integer number (6903855).

Almost surely, 2^71178896 is an apocalyptic number.

It is an amenable number.

71178896 is a deficient number, since it is larger than the sum of its proper divisors (66898204).

71178896 is a wasteful number, since it uses less digits than its factorization.

71178896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5426 (or 5420 counting only the distinct ones).

The product of its digits is 169344, while the sum is 47.

The square root of 71178896 is about 8436.7586192803. The cubic root of 71178896 is about 414.4292652866.

The spelling of 71178896 in words is "seventy-one million, one hundred seventy-eight thousand, eight hundred ninety-six".