68443107 has 4 divisors (see below), whose sum is σ = 91257480. Its totient is φ = 45628736.

The previous prime is 68443097. The next prime is 68443189. The reversal of 68443107 is 70134486.

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 68443107 - 2⁶ = 68443043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68444107) 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 3 ways as a sum of consecutive naturals, for example, 11407182 + ... + 11407187.

It is an arithmetic number, because the mean of its divisors is an integer number (22814370).

Almost surely, 2^68443107 is an apocalyptic number.

68443107 is a deficient number, since it is larger than the sum of its proper divisors (22814373).

68443107 is a wasteful number, since it uses less digits than its factorization.

68443107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22814372.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 68443107 is about 8273.0349328405. The cubic root of 68443107 is about 409.0501649163.

The spelling of 68443107 in words is "sixty-eight million, four hundred forty-three thousand, one hundred seven".