68315808 has 48 divisors (see below), whose sum is σ = 195634656. Its totient is φ = 20701440.

The previous prime is 68315771. The next prime is 68315831. The reversal of 68315808 is 80851386.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31291 + ... + 33402.

It is an arithmetic number, because the mean of its divisors is an integer number (4075722).

Almost surely, 2^68315808 is an apocalyptic number.

It is an amenable number.

68315808 is an abundant number, since it is smaller than the sum of its proper divisors (127318848).

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

68315808 is a wasteful number, since it uses less digits than its factorization.

68315808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64717 (or 64709 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 68315808 is about 8265.3377426455. The cubic root of 68315808 is about 408.7964067428.

The spelling of 68315808 in words is "sixty-eight million, three hundred fifteen thousand, eight hundred eight".