68747320 has 96 divisors (see below), whose sum is σ = 173516400. Its totient is φ = 24440832.

The previous prime is 68747311. The next prime is 68747321. The reversal of 68747320 is 2374786.

It is a self number, because there is not a number n which added to its sum of digits gives 68747320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68747321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 219484 + ... + 219796.

Almost surely, 2^68747320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68747320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86758200).

68747320 is an abundant number, since it is smaller than the sum of its proper divisors (104769080).

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

68747320 is a wasteful number, since it uses less digits than its factorization.

68747320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377 (or 356 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 68747320 is about 8291.4003642328. The cubic root of 68747320 is about 409.6553121257.

The spelling of 68747320 in words is "sixty-eight million, seven hundred forty-seven thousand, three hundred twenty".