824429423 has 2 divisors, whose sum is σ = 824429424. Its totient is φ = 824429422.

The previous prime is 824429393. The next prime is 824429447. The reversal of 824429423 is 324924428.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-824429423 is a prime.

It is a super-2 number, since 2×824429423² = 1359367747016225858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (824429453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 412214711 + 412214712.

It is an arithmetic number, because the mean of its divisors is an integer number (412214712).

Almost surely, 2^824429423 is an apocalyptic number.

824429423 is a deficient number, since it is larger than the sum of its proper divisors (1).

824429423 is an equidigital number, since it uses as much as digits as its factorization.

824429423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 110592, while the sum is 38.

The square root of 824429423 is about 28712.8790440806. The cubic root of 824429423 is about 937.6724605511.

The spelling of 824429423 in words is "eight hundred twenty-four million, four hundred twenty-nine thousand, four hundred twenty-three".