68647117 has 8 divisors (see below), whose sum is σ = 85586112. Its totient is φ = 53491200.

The previous prime is 68647109. The next prime is 68647141. The reversal of 68647117 is 71174686.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68647117 - 2³ = 68647109 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68647117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68647177) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 445684 + ... + 445837.

It is an arithmetic number, because the mean of its divisors is an integer number (10698264).

Almost surely, 2^68647117 is an apocalyptic number.

It is an amenable number.

68647117 is a deficient number, since it is larger than the sum of its proper divisors (16938995).

68647117 is a wasteful number, since it uses less digits than its factorization.

68647117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891539.

The product of its digits is 56448, while the sum is 40.

The square root of 68647117 is about 8285.3555747475. The cubic root of 68647117 is about 409.4561836313.

The spelling of 68647117 in words is "sixty-eight million, six hundred forty-seven thousand, one hundred seventeen".