68783219 has 2 divisors, whose sum is σ = 68783220. Its totient is φ = 68783218.

The previous prime is 68783161. The next prime is 68783227. The reversal of 68783219 is 91238786.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68783219 - 2²⁰ = 67734643 is a prime.

It is a super-2 number, since 2×68783219² = 9462262432003922, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68783219.

It is not a weakly prime, because it can be changed into another prime (68783269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34391609 + 34391610.

It is an arithmetic number, because the mean of its divisors is an integer number (34391610).

Almost surely, 2^68783219 is an apocalyptic number.

68783219 is a deficient number, since it is larger than the sum of its proper divisors (1).

68783219 is an equidigital number, since it uses as much as digits as its factorization.

68783219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 44.

The square root of 68783219 is about 8293.5649150411. The cubic root of 68783219 is about 409.7266053630.

The spelling of 68783219 in words is "sixty-eight million, seven hundred eighty-three thousand, two hundred nineteen".