419984969 has 4 divisors (see below), whose sum is σ = 420982980. Its totient is φ = 418986960.

The previous prime is 419984947. The next prime is 419985001. The reversal of 419984969 is 969489914.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 969489914 = 2 ⋅484744957.

It can be written as a sum of positive squares in 2 ways, for example, as 121110025 + 298874944 = 11005^2 + 17288^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-419984969 is a prime.

It is a super-2 number, since 2×419984969² = 352774748371861922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (419984069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 498374 + ... + 499215.

It is an arithmetic number, because the mean of its divisors is an integer number (105245745).

Almost surely, 2^419984969 is an apocalyptic number.

It is an amenable number.

419984969 is a deficient number, since it is larger than the sum of its proper divisors (998011).

419984969 is an equidigital number, since it uses as much as digits as its factorization.

419984969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998010.

The product of its digits is 5038848, while the sum is 59.

The square root of 419984969 is about 20493.5348097882. The cubic root of 419984969 is about 748.8783048660.

The spelling of 419984969 in words is "four hundred nineteen million, nine hundred eighty-four thousand, nine hundred sixty-nine".