68710920 has 64 divisors (see below), whose sum is σ = 208293120. Its totient is φ = 18130944.

The previous prime is 68710909. The next prime is 68710921. The reversal of 68710920 is 2901786.

It is not an unprimeable number, because it can be changed into a prime (68710921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8689 + ... + 14591.

It is an arithmetic number, because the mean of its divisors is an integer number (3254580).

Almost surely, 2^68710920 is an apocalyptic number.

68710920 is a gapful number since it is divisible by the number (60) 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 68710920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104146560).

68710920 is an abundant number, since it is smaller than the sum of its proper divisors (139582200).

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

68710920 is a wasteful number, since it uses less digits than its factorization.

68710920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6014 (or 6010 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 68710920 is about 8289.2050282280. The cubic root of 68710920 is about 409.5829985873.

The spelling of 68710920 in words is "sixty-eight million, seven hundred ten thousand, nine hundred twenty".