419028661 has 2 divisors, whose sum is σ = 419028662. Its totient is φ = 419028660.

The previous prime is 419028629. The next prime is 419028667. The reversal of 419028661 is 166820914.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 342028036 + 77000625 = 18494^2 + 8775^2 .

It is a cyclic number.

It is not a de Polignac number, because 419028661 - 2⁵ = 419028629 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 419028661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (419028667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209514330 + 209514331.

It is an arithmetic number, because the mean of its divisors is an integer number (209514331).

Almost surely, 2^419028661 is an apocalyptic number.

It is an amenable number.

419028661 is a deficient number, since it is larger than the sum of its proper divisors (1).

419028661 is an equidigital number, since it uses as much as digits as its factorization.

419028661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 419028661 is about 20470.1895692248. The cubic root of 419028661 is about 748.3094729466.

The spelling of 419028661 in words is "four hundred nineteen million, twenty-eight thousand, six hundred sixty-one".