68407185 has 48 divisors (see below), whose sum is σ = 138912192. Its totient is φ = 28425600.

The previous prime is 68407181. The next prime is 68407187. The reversal of 68407185 is 58170486.

It is not a de Polignac number, because 68407185 - 2² = 68407181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68407181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3855 + ... + 12315.

It is an arithmetic number, because the mean of its divisors is an integer number (2894004).

Almost surely, 2^68407185 is an apocalyptic number.

It is an amenable number.

68407185 is an abundant number, since it is smaller than the sum of its proper divisors (70505007).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68407185 is a wasteful number, since it uses less digits than its factorization.

68407185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8494 (or 8487 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 68407185 is about 8270.8636187523. The cubic root of 68407185 is about 408.9785897931.

It can be divided in two parts, 68 and 407185, that added together give a triangular number (407253 = T₉₀₂).

The spelling of 68407185 in words is "sixty-eight million, four hundred seven thousand, one hundred eighty-five".