68393219 has 2 divisors, whose sum is σ = 68393220. Its totient is φ = 68393218.

The previous prime is 68393209. The next prime is 68393243. The reversal of 68393219 is 91239386.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68393219 - 2⁸ = 68392963 is a prime.

It is a super-2 number, since 2×68393219² = 9355264810363922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (68393209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34196609 + 34196610.

It is an arithmetic number, because the mean of its divisors is an integer number (34196610).

Almost surely, 2^68393219 is an apocalyptic number.

68393219 is a deficient number, since it is larger than the sum of its proper divisors (1).

68393219 is an equidigital number, since it uses as much as digits as its factorization.

68393219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 41.

The square root of 68393219 is about 8270.0192865555. The cubic root of 68393219 is about 408.9507555642.

The spelling of 68393219 in words is "sixty-eight million, three hundred ninety-three thousand, two hundred nineteen".