68665710 has 32 divisors (see below), whose sum is σ = 169254432. Its totient is φ = 17815680.

The previous prime is 68665699. The next prime is 68665717. The reversal of 68665710 is 1756686.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68665717) 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, 29821 + ... + 32040.

It is an arithmetic number, because the mean of its divisors is an integer number (5289201).

Almost surely, 2^68665710 is an apocalyptic number.

68665710 is an abundant number, since it is smaller than the sum of its proper divisors (100588722).

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

68665710 is a wasteful number, since it uses less digits than its factorization.

68665710 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61908.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 68665710 is about 8286.4775387374. The cubic root of 68665710 is about 409.4931472210.

The spelling of 68665710 in words is "sixty-eight million, six hundred sixty-five thousand, seven hundred ten".