68320986 has 16 divisors (see below), whose sum is σ = 139549824. Its totient is φ = 22289024.

The previous prime is 68320969. The next prime is 68320991. The reversal of 68320986 is 68902386.

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, 120855 + ... + 121418.

It is an arithmetic number, because the mean of its divisors is an integer number (8721864).

Almost surely, 2^68320986 is an apocalyptic number.

68320986 is an abundant number, since it is smaller than the sum of its proper divisors (71228838).

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

68320986 is a wasteful number, since it uses less digits than its factorization.

68320986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242325.

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 68320986 is about 8265.6509725490. The cubic root of 68320986 is about 408.8067347297.

The spelling of 68320986 in words is "sixty-eight million, three hundred twenty thousand, nine hundred eighty-six".