68321685 has 8 divisors (see below), whose sum is σ = 109314720. Its totient is φ = 36438224.

The previous prime is 68321683. The next prime is 68321713. The reversal of 68321685 is 58612386.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 68321685 - 2¹ = 68321683 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68321681) 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, 2277375 + ... + 2277404.

It is an arithmetic number, because the mean of its divisors is an integer number (13664340).

Almost surely, 2^68321685 is an apocalyptic number.

It is an amenable number.

68321685 is a deficient number, since it is larger than the sum of its proper divisors (40993035).

68321685 is a wasteful number, since it uses less digits than its factorization.

68321685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4554787.

The product of its digits is 69120, while the sum is 39.

The square root of 68321685 is about 8265.6932558618. The cubic root of 68321685 is about 408.8081289081.

It can be divided in two parts, 68321 and 685, that added together give a triangular number (69006 = T₃₇₁).

The spelling of 68321685 in words is "sixty-eight million, three hundred twenty-one thousand, six hundred eighty-five".