421343 has 4 divisors (see below), whose sum is σ = 453768. Its totient is φ = 388920.

The previous prime is 421339. The next prime is 421349. The reversal of 421343 is 343124.

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 421343 - 2² = 421339 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421349) 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, 16193 + ... + 16218.

It is an arithmetic number, because the mean of its divisors is an integer number (113442).

2⁴²¹³⁴³ is an apocalyptic number.

421343 is a deficient number, since it is larger than the sum of its proper divisors (32425).

421343 is a wasteful number, since it uses less digits than its factorization.

421343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32424.

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

The square root of 421343 is about 649.1093898566. The cubic root of 421343 is about 74.9684608130.

Adding to 421343 its reverse (343124), we get a palindrome (764467).

The spelling of 421343 in words is "four hundred twenty-one thousand, three hundred forty-three", and thus it is an iban number.