429643 has 2 divisors, whose sum is σ = 429644. Its totient is φ = 429642.

The previous prime is 429631. The next prime is 429659. The reversal of 429643 is 346924.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-429643 is a prime.

It is not a weakly prime, because it can be changed into another prime (429673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214821 + 214822.

It is an arithmetic number, because the mean of its divisors is an integer number (214822).

2⁴²⁹⁶⁴³ is an apocalyptic number.

429643 is a deficient number, since it is larger than the sum of its proper divisors (1).

429643 is an equidigital number, since it uses as much as digits as its factorization.

429643 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 429643 is about 655.4715859593. The cubic root of 429643 is about 75.4575291447.

The spelling of 429643 in words is "four hundred twenty-nine thousand, six hundred forty-three".