68106930 has 32 divisors (see below), whose sum is σ = 173073024. Its totient is φ = 17093376.

The previous prime is 68106917. The next prime is 68106931. The reversal of 68106930 is 3960186.

It is a junction number, because it is equal to n+sod(n) for n = 68106891 and 68106900.

It is not an unprimeable number, because it can be changed into a prime (68106931) 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 15 ways as a sum of consecutive naturals, for example, 66262 + ... + 67281.

It is an arithmetic number, because the mean of its divisors is an integer number (5408532).

Almost surely, 2^68106930 is an apocalyptic number.

68106930 is an abundant number, since it is smaller than the sum of its proper divisors (104966094).

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

68106930 is a wasteful number, since it uses less digits than its factorization.

68106930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133570.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 68106930 is about 8252.6922879749. The cubic root of 68106930 is about 408.3793449008.

The spelling of 68106930 in words is "sixty-eight million, one hundred six thousand, nine hundred thirty".