423798469 has 2 divisors, whose sum is σ = 423798470. Its totient is φ = 423798468.

The previous prime is 423798467. The next prime is 423798521. The reversal of 423798469 is 964897324.

It is a happy number.

It is an a-pointer prime, because the next prime (423798521) can be obtained adding 423798469 to its sum of digits (52).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 357701569 + 66096900 = 18913^2 + 8130^2 .

It is a cyclic number.

It is not a de Polignac number, because 423798469 - 2¹ = 423798467 is a prime.

It is a super-2 number, since 2×423798469² = 359210284653487922, which contains 22 as substring.

Together with 423798467, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423798461) 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, 211899234 + 211899235.

It is an arithmetic number, because the mean of its divisors is an integer number (211899235).

Almost surely, 2^423798469 is an apocalyptic number.

It is an amenable number.

423798469 is a deficient number, since it is larger than the sum of its proper divisors (1).

423798469 is an equidigital number, since it uses as much as digits as its factorization.

423798469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2612736, while the sum is 52.

The square root of 423798469 is about 20586.3660950640. The cubic root of 423798469 is about 751.1381055622.

The spelling of 423798469 in words is "four hundred twenty-three million, seven hundred ninety-eight thousand, four hundred sixty-nine".