68688426 has 8 divisors (see below), whose sum is σ = 137376864. Its totient is φ = 22896140.

The previous prime is 68688377. The next prime is 68688437. The reversal of 68688426 is 62488686.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

68688426 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5724030 + ... + 5724041.

It is an arithmetic number, because the mean of its divisors is an integer number (17172108).

Almost surely, 2^68688426 is an apocalyptic number.

68688426 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

68688426 is a wasteful number, since it uses less digits than its factorization.

68688426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11448076.

The product of its digits is 884736, while the sum is 48.

The square root of 68688426 is about 8287.8480922372. The cubic root of 68688426 is about 409.5382984362.

The spelling of 68688426 in words is "sixty-eight million, six hundred eighty-eight thousand, four hundred twenty-six".