68447107 has 4 divisors (see below), whose sum is σ = 68969736. Its totient is φ = 67924480.

The previous prime is 68447069. The next prime is 68447111. The reversal of 68447107 is 70174486.

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

It is a cyclic number.

It is not a de Polignac number, because 68447107 - 2²³ = 60058499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68447147) 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 3 ways as a sum of consecutive naturals, for example, 261118 + ... + 261379.

It is an arithmetic number, because the mean of its divisors is an integer number (17242434).

Almost surely, 2^68447107 is an apocalyptic number.

68447107 is a deficient number, since it is larger than the sum of its proper divisors (522629).

68447107 is a wasteful number, since it uses less digits than its factorization.

68447107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522628.

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 68447107 is about 8273.2766785597. The cubic root of 68447107 is about 409.0581334265.

The spelling of 68447107 in words is "sixty-eight million, four hundred forty-seven thousand, one hundred seven".