68716584 has 96 divisors (see below), whose sum is σ = 203523840. Its totient is φ = 20851200.

The previous prime is 68716547. The next prime is 68716589. The reversal of 68716584 is 48561786.

It is a happy number.

68716584 is a `hidden beast` number, since 68 + 7 + 1 + 6 + 584 = 666.

It is not an unprimeable number, because it can be changed into a prime (68716589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37039 + ... + 38849.

It is an arithmetic number, because the mean of its divisors is an integer number (2120040).

Almost surely, 2^68716584 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68716584, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101761920).

68716584 is an abundant number, since it is smaller than the sum of its proper divisors (134807256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68716584 is a wasteful number, since it uses less digits than its factorization.

68716584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1871 (or 1864 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 68716584 is about 8289.5466703554. The cubic root of 68716584 is about 409.5942525693.

It can be divided in two parts, 687 and 16584, that added together give a palindrome (17271).

The spelling of 68716584 in words is "sixty-eight million, seven hundred sixteen thousand, five hundred eighty-four".