71684168 has 16 divisors (see below), whose sum is σ = 134515500. Its totient is φ = 35813376.

The previous prime is 71684167. The next prime is 71684191. The reversal of 71684168 is 86148617.

It can be written as a sum of positive squares in 2 ways, for example, as 70190884 + 1493284 = 8378^2 + 1222^2 .

It is not an unprimeable number, because it can be changed into a prime (71684167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10088 + ... + 15656.

Almost surely, 2^71684168 is an apocalyptic number.

It is an amenable number.

71684168 is a deficient number, since it is larger than the sum of its proper divisors (62831332).

71684168 is a wasteful number, since it uses less digits than its factorization.

71684168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7184 (or 7180 counting only the distinct ones).

The product of its digits is 64512, while the sum is 41.

The square root of 71684168 is about 8466.6503411916. The cubic root of 71684168 is about 415.4075794487.

The spelling of 71684168 in words is "seventy-one million, six hundred eighty-four thousand, one hundred sixty-eight".