419795021 has 2 divisors, whose sum is σ = 419795022. Its totient is φ = 419795020.

The previous prime is 419794997. The next prime is 419795027. The reversal of 419795021 is 120597914.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 239940100 + 179854921 = 15490^2 + 13411^2 .

It is a cyclic number.

It is not a de Polignac number, because 419795021 - 2¹⁸ = 419532877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (419795027) 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, 209897510 + 209897511.

It is an arithmetic number, because the mean of its divisors is an integer number (209897511).

Almost surely, 2^419795021 is an apocalyptic number.

It is an amenable number.

419795021 is a deficient number, since it is larger than the sum of its proper divisors (1).

419795021 is an equidigital number, since it uses as much as digits as its factorization.

419795021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 38.

The square root of 419795021 is about 20488.8999460684. The cubic root of 419795021 is about 748.7653886133.

The spelling of 419795021 in words is "four hundred nineteen million, seven hundred ninety-five thousand, twenty-one".