419609 has 2 divisors, whose sum is σ = 419610. Its totient is φ = 419608.

The previous prime is 419603. The next prime is 419623. The reversal of 419609 is 906914.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 403225 + 16384 = 635^2 + 128^2 .

It is a cyclic number.

It is not a de Polignac number, because 419609 - 2¹⁶ = 354073 is a prime.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (419603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209804 + 209805.

It is an arithmetic number, because the mean of its divisors is an integer number (209805).

2⁴¹⁹⁶⁰⁹ is an apocalyptic number.

It is an amenable number.

419609 is a deficient number, since it is larger than the sum of its proper divisors (1).

419609 is an equidigital number, since it uses as much as digits as its factorization.

419609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 419609 is about 647.7723365504. The cubic root of 419609 is about 74.8654773783.

The spelling of 419609 in words is "four hundred nineteen thousand, six hundred nine".