83805419 has 2 divisors, whose sum is σ = 83805420. Its totient is φ = 83805418.

The previous prime is 83805383. The next prime is 83805439. The reversal of 83805419 is 91450838.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83805419 - 2¹² = 83801323 is a prime.

It is a super-2 number, since 2×83805419² = 14046696507531122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (83805439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41902709 + 41902710.

It is an arithmetic number, because the mean of its divisors is an integer number (41902710).

Almost surely, 2^83805419 is an apocalyptic number.

83805419 is a deficient number, since it is larger than the sum of its proper divisors (1).

83805419 is an equidigital number, since it uses as much as digits as its factorization.

83805419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 83805419 is about 9154.5299715496. The cubic root of 83805419 is about 437.6134893606.

The spelling of 83805419 in words is "eighty-three million, eight hundred five thousand, four hundred nineteen".