28543343 has 4 divisors (see below), whose sum is σ = 29464128. Its totient is φ = 27622560.

The previous prime is 28543327. The next prime is 28543351. The reversal of 28543343 is 34334582.

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 28543343 - 2⁴ = 28543327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28543363) 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, 460346 + ... + 460407.

It is an arithmetic number, because the mean of its divisors is an integer number (7366032).

Almost surely, 2^28543343 is an apocalyptic number.

28543343 is a deficient number, since it is larger than the sum of its proper divisors (920785).

28543343 is an equidigital number, since it uses as much as digits as its factorization.

28543343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920784.

The product of its digits is 34560, while the sum is 32.

The square root of 28543343 is about 5342.5970276636. The cubic root of 28543343 is about 305.6105051931.

The spelling of 28543343 in words is "twenty-eight million, five hundred forty-three thousand, three hundred forty-three".