68785361 has 8 divisors (see below), whose sum is σ = 72501480. Its totient is φ = 65158912.

The previous prime is 68785351. The next prime is 68785363. The reversal of 68785361 is 16358786.

It can be written as a sum of positive squares in 4 ways, for example, as 12250000 + 56535361 = 3500^2 + 7519^2 .

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 68785361 - 2¹⁰ = 68784337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68785363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20840 + ... + 23913.

It is an arithmetic number, because the mean of its divisors is an integer number (9062685).

Almost surely, 2^68785361 is an apocalyptic number.

It is an amenable number.

68785361 is a deficient number, since it is larger than the sum of its proper divisors (3716119).

68785361 is a wasteful number, since it uses less digits than its factorization.

68785361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44835.

The product of its digits is 241920, while the sum is 44.

The square root of 68785361 is about 8293.6940503011. The cubic root of 68785361 is about 409.7308584608.

The spelling of 68785361 in words is "sixty-eight million, seven hundred eighty-five thousand, three hundred sixty-one".