68747071 has 4 divisors (see below), whose sum is σ = 69519600. Its totient is φ = 67974544.

The previous prime is 68747047. The next prime is 68747087. The reversal of 68747071 is 17074786.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68747071 - 2⁷ = 68746943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68747171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 386131 + ... + 386308.

It is an arithmetic number, because the mean of its divisors is an integer number (17379900).

Almost surely, 2^68747071 is an apocalyptic number.

68747071 is a deficient number, since it is larger than the sum of its proper divisors (772529).

68747071 is an equidigital number, since it uses as much as digits as its factorization.

68747071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772528.

The product of its (nonzero) digits is 65856, while the sum is 40.

The square root of 68747071 is about 8291.3853486616. The cubic root of 68747071 is about 409.6548175401.

The spelling of 68747071 in words is "sixty-eight million, seven hundred forty-seven thousand, seventy-one".