68320704 has 112 divisors (see below), whose sum is σ = 189024768. Its totient is φ = 21762048.

The previous prime is 68320687. The next prime is 68320727. The reversal of 68320704 is 40702386.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 604552 + ... + 604664.

Almost surely, 2^68320704 is an apocalyptic number.

68320704 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68320704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94512384).

68320704 is an abundant number, since it is smaller than the sum of its proper divisors (120704064).

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

68320704 is a wasteful number, since it uses less digits than its factorization.

68320704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242 (or 232 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 68320704 is about 8265.6339139839. The cubic root of 68320704 is about 408.8061722688.

The spelling of 68320704 in words is "sixty-eight million, three hundred twenty thousand, seven hundred four".