71327218 has 16 divisors (see below), whose sum is σ = 110651904. Its totient is φ = 34447680.

The previous prime is 71327183. The next prime is 71327237. The reversal of 71327218 is 81272317.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a self number, because there is not a number n which added to its sum of digits gives 71327218.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54346 + ... + 55642.

It is an arithmetic number, because the mean of its divisors is an integer number (6915744).

Almost surely, 2^71327218 is an apocalyptic number.

71327218 is a deficient number, since it is larger than the sum of its proper divisors (39324686).

71327218 is a wasteful number, since it uses less digits than its factorization.

71327218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2217.

The product of its digits is 4704, while the sum is 31.

The square root of 71327218 is about 8445.5442690214. The cubic root of 71327218 is about 414.7169270052.

The spelling of 71327218 in words is "seventy-one million, three hundred twenty-seven thousand, two hundred eighteen".