68612208 has 80 divisors (see below), whose sum is σ = 208081920. Its totient is φ = 19070208.

The previous prime is 68612191. The next prime is 68612227. The reversal of 68612208 is 80221686.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 9673 + ... + 15191.

It is an arithmetic number, because the mean of its divisors is an integer number (2601024).

Almost surely, 2^68612208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68612208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104040960).

68612208 is an abundant number, since it is smaller than the sum of its proper divisors (139469712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68612208 is a wasteful number, since it uses less digits than its factorization.

68612208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5574 (or 5568 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 68612208 is about 8283.2486380647. The cubic root of 68612208 is about 409.3867651806.

The spelling of 68612208 in words is "sixty-eight million, six hundred twelve thousand, two hundred eight".