419724689 has 2 divisors, whose sum is σ = 419724690. Its totient is φ = 419724688.

The previous prime is 419724647. The next prime is 419724703. The reversal of 419724689 is 986427914.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 247905025 + 171819664 = 15745^2 + 13108^2 .

It is a cyclic number.

It is not a de Polignac number, because 419724689 - 2¹² = 419720593 is a prime.

It is a super-2 number, since 2×419724689² = 352337629112293442, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (419721689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209862344 + 209862345.

It is an arithmetic number, because the mean of its divisors is an integer number (209862345).

Almost surely, 2^419724689 is an apocalyptic number.

It is an amenable number.

419724689 is a deficient number, since it is larger than the sum of its proper divisors (1).

419724689 is an equidigital number, since it uses as much as digits as its factorization.

419724689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912, while the sum is 50.

The square root of 419724689 is about 20487.1835301976. The cubic root of 419724689 is about 748.7235704990.

The spelling of 419724689 in words is "four hundred nineteen million, seven hundred twenty-four thousand, six hundred eighty-nine".