434321 has 4 divisors (see below), whose sum is σ = 457200. Its totient is φ = 411444.

The previous prime is 434311. The next prime is 434323. The reversal of 434321 is 123434.

434321 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 123434 = 2 ⋅61717.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-434321 is a prime.

It is an Ulam number.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 434321.

It is not an unprimeable number, because it can be changed into a prime (434323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11411 + ... + 11448.

It is an arithmetic number, because the mean of its divisors is an integer number (114300).

2⁴³⁴³²¹ is an apocalyptic number.

It is an amenable number.

434321 is a deficient number, since it is larger than the sum of its proper divisors (22879).

434321 is a wasteful number, since it uses less digits than its factorization.

434321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22878.

The product of its digits is 288, while the sum is 17.

The square root of 434321 is about 659.0303483149. The cubic root of 434321 is about 75.7304044409.

Adding to 434321 its reverse (123434), we get a palindrome (557755).

The spelling of 434321 in words is "four hundred thirty-four thousand, three hundred twenty-one".