419553689 has 2 divisors, whose sum is σ = 419553690. Its totient is φ = 419553688.

The previous prime is 419553613. The next prime is 419553691. The reversal of 419553689 is 986355914.

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., 419553289 + 400 = 20483^2 + 20^2 .

It is a cyclic number.

It is not a de Polignac number, because 419553689 - 2¹² = 419549593 is a prime.

Together with 419553691, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (419552689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209776844 + 209776845.

It is an arithmetic number, because the mean of its divisors is an integer number (209776845).

Almost surely, 2^419553689 is an apocalyptic number.

It is an amenable number.

419553689 is a deficient number, since it is larger than the sum of its proper divisors (1).

419553689 is an equidigital number, since it uses as much as digits as its factorization.

419553689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1166400, while the sum is 50.

The square root of 419553689 is about 20483.0097641924. The cubic root of 419553689 is about 748.6218775520.

The spelling of 419553689 in words is "four hundred nineteen million, five hundred fifty-three thousand, six hundred eighty-nine".