419823197 has 2 divisors, whose sum is σ = 419823198. Its totient is φ = 419823196.

The previous prime is 419823179. The next prime is 419823241. The reversal of 419823197 is 791328914.

Together with previous prime (419823179) it forms an Ormiston pair, because they use the same digits, order apart.

It is an a-pointer prime, because the next prime (419823241) can be obtained adding 419823197 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 307335961 + 112487236 = 17531^2 + 10606^2 .

It is a cyclic number.

It is not a de Polignac number, because 419823197 - 2¹⁶ = 419757661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (419823697) 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, 209911598 + 209911599.

It is an arithmetic number, because the mean of its divisors is an integer number (209911599).

Almost surely, 2^419823197 is an apocalyptic number.

It is an amenable number.

419823197 is a deficient number, since it is larger than the sum of its proper divisors (1).

419823197 is an equidigital number, since it uses as much as digits as its factorization.

419823197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 44.

The square root of 419823197 is about 20489.5875263510. The cubic root of 419823197 is about 748.7821402346.

The spelling of 419823197 in words is "four hundred nineteen million, eight hundred twenty-three thousand, one hundred ninety-seven".