432643 has 4 divisors (see below), whose sum is σ = 435240. Its totient is φ = 430048.

The previous prime is 432637. The next prime is 432659. The reversal of 432643 is 346234.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 432643 - 2¹³ = 424451 is a prime.

It is a Duffinian number.

432643 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (432613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1030 + ... + 1387.

It is an arithmetic number, because the mean of its divisors is an integer number (108810).

2⁴³²⁶⁴³ is an apocalyptic number.

432643 is a deficient number, since it is larger than the sum of its proper divisors (2597).

432643 is a wasteful number, since it uses less digits than its factorization.

432643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2596.

The product of its digits is 1728, while the sum is 22.

The square root of 432643 is about 657.7560337998. The cubic root of 432643 is about 75.6327503839.

Adding to 432643 its reverse (346234), we get a palindrome (778877).

The spelling of 432643 in words is "four hundred thirty-two thousand, six hundred forty-three".