6429223 has 2 divisors, whose sum is σ = 6429224. Its totient is φ = 6429222.

The previous prime is 6429221. The next prime is 6429323. The reversal of 6429223 is 3229246.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6429223 - 2¹ = 6429221 is a prime.

Together with 6429221, it forms a pair of twin primes.

6429223 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 6429191 and 6429200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6429221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3214611 + 3214612.

It is an arithmetic number, because the mean of its divisors is an integer number (3214612).

Almost surely, 2^6429223 is an apocalyptic number.

6429223 is a deficient number, since it is larger than the sum of its proper divisors (1).

6429223 is an equidigital number, since it uses as much as digits as its factorization.

6429223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 28.

The square root of 6429223 is about 2535.5912525484. The cubic root of 6429223 is about 185.9457100581.

The spelling of 6429223 in words is "six million, four hundred twenty-nine thousand, two hundred twenty-three".