68930219 has 2 divisors, whose sum is σ = 68930220. Its totient is φ = 68930218.

The previous prime is 68930209. The next prime is 68930249. The reversal of 68930219 is 91203986.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68930219 - 2⁸ = 68929963 is a prime.

It is a super-2 number, since 2×68930219² = 9502750182775922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68930209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34465109 + 34465110.

It is an arithmetic number, because the mean of its divisors is an integer number (34465110).

Almost surely, 2^68930219 is an apocalyptic number.

68930219 is a deficient number, since it is larger than the sum of its proper divisors (1).

68930219 is an equidigital number, since it uses as much as digits as its factorization.

68930219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 68930219 is about 8302.4224778073. The cubic root of 68930219 is about 410.0182799702.

The spelling of 68930219 in words is "sixty-eight million, nine hundred thirty thousand, two hundred nineteen".