68345685 has 24 divisors (see below), whose sum is σ = 119408640. Its totient is φ = 36160992.

The previous prime is 68345639. The next prime is 68345687. The reversal of 68345685 is 58654386.

68345685 is a `hidden beast` number, since 6 + 83 + 4 + 568 + 5 = 666.

It is not a de Polignac number, because 68345685 - 2⁶ = 68345621 is a prime.

It is a super-2 number, since 2×68345685² = 9342265316238450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 68345685.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68345687) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 265 + ... + 11694.

It is an arithmetic number, because the mean of its divisors is an integer number (4975360).

Almost surely, 2^68345685 is an apocalyptic number.

It is an amenable number.

68345685 is a deficient number, since it is larger than the sum of its proper divisors (51062955).

68345685 is a wasteful number, since it uses less digits than its factorization.

68345685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12097 (or 12094 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The square root of 68345685 is about 8267.1449122415. The cubic root of 68345685 is about 408.8559919279.

The spelling of 68345685 in words is "sixty-eight million, three hundred forty-five thousand, six hundred eighty-five".