68334445 has 4 divisors (see below), whose sum is σ = 82001340. Its totient is φ = 54667552.

The previous prime is 68334443. The next prime is 68334451. The reversal of 68334445 is 54443386.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54443386 = 2 ⋅27221693.

It can be written as a sum of positive squares in 2 ways, for example, as 49646116 + 18688329 = 7046^2 + 4323^2 .

It is a cyclic number.

It is not a de Polignac number, because 68334445 - 2¹ = 68334443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68334443) 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, 6833440 + ... + 6833449.

It is an arithmetic number, because the mean of its divisors is an integer number (20500335).

Almost surely, 2^68334445 is an apocalyptic number.

It is an amenable number.

68334445 is a deficient number, since it is larger than the sum of its proper divisors (13666895).

68334445 is a wasteful number, since it uses less digits than its factorization.

68334445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13666894.

The product of its digits is 138240, while the sum is 37.

The square root of 68334445 is about 8266.4650849078. The cubic root of 68334445 is about 408.8335774755.

The spelling of 68334445 in words is "sixty-eight million, three hundred thirty-four thousand, four hundred forty-five".