68220419 has 2 divisors, whose sum is σ = 68220420. Its totient is φ = 68220418.

The previous prime is 68220407. The next prime is 68220437. The reversal of 68220419 is 91402286.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68220419 is a prime.

It is a super-2 number, since 2×68220419² = 9308051137071122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (68220479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34110209 + 34110210.

It is an arithmetic number, because the mean of its divisors is an integer number (34110210).

Almost surely, 2^68220419 is an apocalyptic number.

68220419 is a deficient number, since it is larger than the sum of its proper divisors (1).

68220419 is an equidigital number, since it uses as much as digits as its factorization.

68220419 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 68220419 is about 8259.5653033316. The cubic root of 68220419 is about 408.6060513671.

The spelling of 68220419 in words is "sixty-eight million, two hundred twenty thousand, four hundred nineteen".