419604989 has 2 divisors, whose sum is σ = 419604990. Its totient is φ = 419604988.

The previous prime is 419604979. The next prime is 419605001. The reversal of 419604989 is 989406914.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 406224025 + 13380964 = 20155^2 + 3658^2 .

It is a cyclic number.

It is not a de Polignac number, because 419604989 - 2¹² = 419600893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (419604919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209802494 + 209802495.

It is an arithmetic number, because the mean of its divisors is an integer number (209802495).

Almost surely, 2^419604989 is an apocalyptic number.

It is an amenable number.

419604989 is a deficient number, since it is larger than the sum of its proper divisors (1).

419604989 is an equidigital number, since it uses as much as digits as its factorization.

419604989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 559872, while the sum is 50.

The square root of 419604989 is about 20484.2619832885. The cubic root of 419604989 is about 748.6523883370.

The spelling of 419604989 in words is "four hundred nineteen million, six hundred four thousand, nine hundred eighty-nine".