68730086 has 4 divisors (see below), whose sum is σ = 103095132. Its totient is φ = 34365042.

The previous prime is 68730073. The next prime is 68730097. The reversal of 68730086 is 68003786.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 17182520 + ... + 17182523.

It is an arithmetic number, because the mean of its divisors is an integer number (25773783).

Almost surely, 2^68730086 is an apocalyptic number.

68730086 is a deficient number, since it is larger than the sum of its proper divisors (34365046).

68730086 is a wasteful number, since it uses less digits than its factorization.

68730086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34365045.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 68730086 is about 8290.3610295330. The cubic root of 68730086 is about 409.6210776291.

The spelling of 68730086 in words is "sixty-eight million, seven hundred thirty thousand, eighty-six".