68713872 has 20 divisors (see below), whose sum is σ = 177510960. Its totient is φ = 22904608.

The previous prime is 68713867. The next prime is 68713873. The reversal of 68713872 is 27831786.

It is not an unprimeable number, because it can be changed into a prime (68713873) 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 3 ways as a sum of consecutive naturals, for example, 715722 + ... + 715817.

It is an arithmetic number, because the mean of its divisors is an integer number (8875548).

Almost surely, 2^68713872 is an apocalyptic number.

It is an amenable number.

68713872 is an abundant number, since it is smaller than the sum of its proper divisors (108797088).

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

68713872 is a wasteful number, since it uses less digits than its factorization.

68713872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1431550 (or 1431544 counting only the distinct ones).

The product of its digits is 112896, while the sum is 42.

The square root of 68713872 is about 8289.3830892293. The cubic root of 68713872 is about 409.5888640873.

The spelling of 68713872 in words is "sixty-eight million, seven hundred thirteen thousand, eight hundred seventy-two".