68591386 has 8 divisors (see below), whose sum is σ = 103482324. Its totient is φ = 34097280.

The previous prime is 68591371. The next prime is 68591417. The reversal of 68591386 is 68319586.

It can be written as a sum of positive squares in 2 ways, for example, as 67815225 + 776161 = 8235^2 + 881^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 98775 + ... + 99466.

Almost surely, 2^68591386 is an apocalyptic number.

68591386 is a deficient number, since it is larger than the sum of its proper divisors (34890938).

68591386 is a wasteful number, since it uses less digits than its factorization.

68591386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198416.

The product of its digits is 311040, while the sum is 46.

The square root of 68591386 is about 8281.9916686749. The cubic root of 68591386 is about 409.3453482865.

The spelling of 68591386 in words is "sixty-eight million, five hundred ninety-one thousand, three hundred eighty-six".