68107005 has 12 divisors (see below), whose sum is σ = 118052220. Its totient is φ = 36323712.

The previous prime is 68106989. The next prime is 68107009. The reversal of 68107005 is 50070186.

It can be written as a sum of positive squares in 2 ways, for example, as 45724644 + 22382361 = 6762^2 + 4731^2 .

It is not a de Polignac number, because 68107005 - 2⁴ = 68106989 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 68107005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68107009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 756700 + ... + 756789.

It is an arithmetic number, because the mean of its divisors is an integer number (9837685).

Almost surely, 2^68107005 is an apocalyptic number.

It is an amenable number.

68107005 is a deficient number, since it is larger than the sum of its proper divisors (49945215).

68107005 is a wasteful number, since it uses less digits than its factorization.

68107005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1513500 (or 1513497 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 68107005 is about 8252.6968319453. The cubic root of 68107005 is about 408.3794948045.

The spelling of 68107005 in words is "sixty-eight million, one hundred seven thousand, five".