68689107 has 8 divisors (see below), whose sum is σ = 101761680. Its totient is φ = 45792720.

The previous prime is 68689073. The next prime is 68689121. The reversal of 68689107 is 70198686.

It is a happy number.

It is not a de Polignac number, because 68689107 - 2¹² = 68685011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68689207) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1271994 + ... + 1272047.

It is an arithmetic number, because the mean of its divisors is an integer number (12720210).

Almost surely, 2^68689107 is an apocalyptic number.

68689107 is a deficient number, since it is larger than the sum of its proper divisors (33072573).

68689107 is a wasteful number, since it uses less digits than its factorization.

68689107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2544050 (or 2544044 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 68689107 is about 8287.8891763826. The cubic root of 68689107 is about 409.5396518649.

The spelling of 68689107 in words is "sixty-eight million, six hundred eighty-nine thousand, one hundred seven".