19798067 has 2 divisors, whose sum is σ = 19798068. Its totient is φ = 19798066.

The previous prime is 19798049. The next prime is 19798069. The reversal of 19798067 is 76089791.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19798067 - 2⁶ = 19798003 is a prime.

Together with 19798069, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (19798069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9899033 + 9899034.

It is an arithmetic number, because the mean of its divisors is an integer number (9899034).

Almost surely, 2^19798067 is an apocalyptic number.

19798067 is a deficient number, since it is larger than the sum of its proper divisors (1).

19798067 is an equidigital number, since it uses as much as digits as its factorization.

19798067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 190512, while the sum is 47.

The square root of 19798067 is about 4449.5018822336. The cubic root of 19798067 is about 270.5251188744.

The spelling of 19798067 in words is "nineteen million, seven hundred ninety-eight thousand, sixty-seven".