68107620 has 96 divisors (see below), whose sum is σ = 225017856. Its totient is φ = 15062400.

The previous prime is 68107619. The next prime is 68107621. The reversal of 68107620 is 2670186.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (68107619) and next prime (68107621).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (68107621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10405 + ... + 15635.

It is an arithmetic number, because the mean of its divisors is an integer number (2343936).

Almost surely, 2^68107620 is an apocalyptic number.

68107620 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 68107620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112508928).

68107620 is an abundant number, since it is smaller than the sum of its proper divisors (156910236).

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

68107620 is a wasteful number, since it uses less digits than its factorization.

68107620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5281 (or 5279 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 68107620 is about 8252.7340924084. The cubic root of 68107620 is about 408.3807240105.

The spelling of 68107620 in words is "sixty-eight million, one hundred seven thousand, six hundred twenty".