68988206 has 16 divisors (see below), whose sum is σ = 122081280. Its totient is φ = 28612440.

The previous prime is 68988203. The next prime is 68988217. The reversal of 68988206 is 60288986.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68988203) 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 7 ways as a sum of consecutive naturals, for example, 79046 + ... + 79913.

It is an arithmetic number, because the mean of its divisors is an integer number (7630080).

Almost surely, 2^68988206 is an apocalyptic number.

68988206 is a deficient number, since it is larger than the sum of its proper divisors (53093074).

68988206 is a wasteful number, since it uses less digits than its factorization.

68988206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158999.

The product of its (nonzero) digits is 331776, while the sum is 47.

The square root of 68988206 is about 8305.9139172038. The cubic root of 68988206 is about 410.1332226200.

The spelling of 68988206 in words is "sixty-eight million, nine hundred eighty-eight thousand, two hundred six".