419559869 has 2 divisors, whose sum is σ = 419559870. Its totient is φ = 419559868.

The previous prime is 419559863. The next prime is 419559883. The reversal of 419559869 is 968955914.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 274068025 + 145491844 = 16555^2 + 12062^2 .

It is a cyclic number.

It is not a de Polignac number, because 419559869 - 2⁴ = 419559853 is a prime.

It is a super-2 number, since 2×419559869² = 352060967350594322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (419559863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209779934 + 209779935.

It is an arithmetic number, because the mean of its divisors is an integer number (209779935).

Almost surely, 2^419559869 is an apocalyptic number.

It is an amenable number.

419559869 is a deficient number, since it is larger than the sum of its proper divisors (1).

419559869 is an equidigital number, since it uses as much as digits as its factorization.

419559869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3499200, while the sum is 56.

The square root of 419559869 is about 20483.1606203730. The cubic root of 419559869 is about 748.6255532520.

The spelling of 419559869 in words is "four hundred nineteen million, five hundred fifty-nine thousand, eight hundred sixty-nine".