68277193 has 2 divisors, whose sum is σ = 68277194. Its totient is φ = 68277192.

The previous prime is 68277191. The next prime is 68277257. The reversal of 68277193 is 39177286.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45265984 + 23011209 = 6728^2 + 4797^2 .

It is a cyclic number.

It is not a de Polignac number, because 68277193 - 2¹ = 68277191 is a prime.

Together with 68277191, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (68277191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34138596 + 34138597.

It is an arithmetic number, because the mean of its divisors is an integer number (34138597).

Almost surely, 2^68277193 is an apocalyptic number.

It is an amenable number.

68277193 is a deficient number, since it is larger than the sum of its proper divisors (1).

68277193 is an equidigital number, since it uses as much as digits as its factorization.

68277193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127008, while the sum is 43.

The square root of 68277193 is about 8263.0014522569. The cubic root of 68277193 is about 408.7193691879.

The spelling of 68277193 in words is "sixty-eight million, two hundred seventy-seven thousand, one hundred ninety-three".