68344853 has 4 divisors (see below), whose sum is σ = 68971980. Its totient is φ = 67717728.

The previous prime is 68344849. The next prime is 68344873. The reversal of 68344853 is 35844386.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35844386 = 2 ⋅17922193.

It can be written as a sum of positive squares in 2 ways, for example, as 28111204 + 40233649 = 5302^2 + 6343^2 .

It is a cyclic number.

It is not a de Polignac number, because 68344853 - 2² = 68344849 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68344853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68344823) 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, 313400 + ... + 313617.

It is an arithmetic number, because the mean of its divisors is an integer number (17242995).

Almost surely, 2^68344853 is an apocalyptic number.

It is an amenable number.

68344853 is a deficient number, since it is larger than the sum of its proper divisors (627127).

68344853 is a wasteful number, since it uses less digits than its factorization.

68344853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627126.

The product of its digits is 276480, while the sum is 41.

The square root of 68344853 is about 8267.0945924188. The cubic root of 68344853 is about 408.8543328640.

The spelling of 68344853 in words is "sixty-eight million, three hundred forty-four thousand, eight hundred fifty-three".