428343 has 8 divisors (see below), whose sum is σ = 579456. Its totient is φ = 281400.

The previous prime is 428339. The next prime is 428353. The reversal of 428343 is 343824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 428343 - 2² = 428339 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 793 + ... + 1218.

It is an arithmetic number, because the mean of its divisors is an integer number (72432).

2⁴²⁸³⁴³ is an apocalyptic number.

428343 is a deficient number, since it is larger than the sum of its proper divisors (151113).

428343 is a wasteful number, since it uses less digits than its factorization.

428343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2085.

The product of its digits is 2304, while the sum is 24.

The square root of 428343 is about 654.4791822510. The cubic root of 428343 is about 75.3813465995.

It can be divided in two parts, 42 and 8343, that added together give a triangular number (8385 = T₁₂₉).

The spelling of 428343 in words is "four hundred twenty-eight thousand, three hundred forty-three".