71712568 has 16 divisors (see below), whose sum is σ = 134579160. Its totient is φ = 35824800.

The previous prime is 71712559. The next prime is 71712569. The reversal of 71712568 is 86521717.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71712569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7803 + ... + 14293.

Almost surely, 2^71712568 is an apocalyptic number.

It is an amenable number.

71712568 is a deficient number, since it is larger than the sum of its proper divisors (62866592).

71712568 is a wasteful number, since it uses less digits than its factorization.

71712568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7878 (or 7874 counting only the distinct ones).

The product of its digits is 23520, while the sum is 37.

The square root of 71712568 is about 8468.3273436966. The cubic root of 71712568 is about 415.4624312517.

The spelling of 71712568 in words is "seventy-one million, seven hundred twelve thousand, five hundred sixty-eight".