68082705 has 24 divisors (see below), whose sum is σ = 124953192. Its totient is φ = 34174464.

The previous prime is 68082697. The next prime is 68082713. The reversal of 68082705 is 50728086.

It is an interprime number because it is at equal distance from previous prime (68082697) and next prime (68082713).

It can be written as a sum of positive squares in 4 ways, for example, as 22439169 + 45643536 = 4737^2 + 6756^2 .

It is not a de Polignac number, because 68082705 - 2³ = 68082697 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68082705.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43734 + ... + 45263.

It is an arithmetic number, because the mean of its divisors is an integer number (5206383).

Almost surely, 2^68082705 is an apocalyptic number.

It is an amenable number.

68082705 is a deficient number, since it is larger than the sum of its proper divisors (56870487).

68082705 is a wasteful number, since it uses less digits than its factorization.

68082705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89025 (or 89022 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 68082705 is about 8251.2244545885. The cubic root of 68082705 is about 408.3309202504.

The spelling of 68082705 in words is "sixty-eight million, eighty-two thousand, seven hundred five".