71068288 has 16 divisors (see below), whose sum is σ = 141581610. Its totient is φ = 35534080.

The previous prime is 71068271. The next prime is 71068289. The reversal of 71068288 is 88286017.

It can be written as a sum of positive squares in only one way, i.e., 36869184 + 34199104 = 6072^2 + 5848^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a self number, because there is not a number n which added to its sum of digits gives 71068288.

It is not an unprimeable number, because it can be changed into a prime (71068289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277483 + ... + 277738.

Almost surely, 2^71068288 is an apocalyptic number.

It is an amenable number.

71068288 is a deficient number, since it is larger than the sum of its proper divisors (70513322).

71068288 is an equidigital number, since it uses as much as digits as its factorization.

71068288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555235 (or 555223 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 40.

The square root of 71068288 is about 8430.2009465967. The cubic root of 71068288 is about 414.2144874095.

The spelling of 71068288 in words is "seventy-one million, sixty-eight thousand, two hundred eighty-eight".