68933986 has 32 divisors (see below), whose sum is σ = 117936000. Its totient is φ = 29930880.

The previous prime is 68933981. The next prime is 68933993.

68933986 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (68933981) 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 15 ways as a sum of consecutive naturals, for example, 65190 + ... + 66238.

It is an arithmetic number, because the mean of its divisors is an integer number (3685500).

Almost surely, 2^68933986 is an apocalyptic number.

68933986 is a deficient number, since it is larger than the sum of its proper divisors (49002014).

68933986 is a wasteful number, since it uses less digits than its factorization.

68933986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1194.

The product of its digits is 1679616, while the sum is 52.

The square root of 68933986 is about 8302.6493362059. The cubic root of 68933986 is about 410.0257489282.

The spelling of 68933986 in words is "sixty-eight million, nine hundred thirty-three thousand, nine hundred eighty-six".