6443429 has 2 divisors, whose sum is σ = 6443430. Its totient is φ = 6443428.

The previous prime is 6443417. The next prime is 6443447. The reversal of 6443429 is 9243446.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5166529 + 1276900 = 2273^2 + 1130^2 .

It is a cyclic number.

It is not a de Polignac number, because 6443429 - 2¹⁶ = 6377893 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 6443395 and 6443404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6443329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3221714 + 3221715.

It is an arithmetic number, because the mean of its divisors is an integer number (3221715).

Almost surely, 2^6443429 is an apocalyptic number.

It is an amenable number.

6443429 is a deficient number, since it is larger than the sum of its proper divisors (1).

6443429 is an equidigital number, since it uses as much as digits as its factorization.

6443429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 32.

The square root of 6443429 is about 2538.3910258272. The cubic root of 6443429 is about 186.0825644161.

The spelling of 6443429 in words is "six million, four hundred forty-three thousand, four hundred twenty-nine".