68579388 has 72 divisors (see below), whose sum is σ = 179786880. Its totient is φ = 22026240.

The previous prime is 68579387. The next prime is 68579419. The reversal of 68579388 is 88397586.

It is a happy number.

68579388 is a `hidden beast` number, since 68 + 579 + 3 + 8 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68579387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142933 + ... + 143411.

It is an arithmetic number, because the mean of its divisors is an integer number (2497040).

Almost surely, 2^68579388 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 68579388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89893440).

68579388 is an abundant number, since it is smaller than the sum of its proper divisors (111207492).

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

68579388 is a wasteful number, since it uses less digits than its factorization.

68579388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627 (or 622 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 54.

The square root of 68579388 is about 8281.2672943216. The cubic root of 68579388 is about 409.3214793423.

The spelling of 68579388 in words is "sixty-eight million, five hundred seventy-nine thousand, three hundred eighty-eight".