71320268 has 6 divisors (see below), whose sum is σ = 124810476. Its totient is φ = 35660132.

The previous prime is 71320237. The next prime is 71320283. The reversal of 71320268 is 86202317.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 71320268.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8915030 + ... + 8915037.

It is an arithmetic number, because the mean of its divisors is an integer number (20801746).

Almost surely, 2^71320268 is an apocalyptic number.

It is an amenable number.

71320268 is a deficient number, since it is larger than the sum of its proper divisors (53490208).

71320268 is a wasteful number, since it uses less digits than its factorization.

71320268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17830071 (or 17830069 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 71320268 is about 8445.1327994295. The cubic root of 71320268 is about 414.7034568025.

The spelling of 71320268 in words is "seventy-one million, three hundred twenty thousand, two hundred sixty-eight".