28534243 has 2 divisors, whose sum is σ = 28534244. Its totient is φ = 28534242.

The previous prime is 28534213. The next prime is 28534249. The reversal of 28534243 is 34243582.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28534243 - 2¹⁷ = 28403171 is a prime.

It is not a weakly prime, because it can be changed into another prime (28534249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14267121 + 14267122.

It is an arithmetic number, because the mean of its divisors is an integer number (14267122).

Almost surely, 2^28534243 is an apocalyptic number.

28534243 is a deficient number, since it is larger than the sum of its proper divisors (1).

28534243 is an equidigital number, since it uses as much as digits as its factorization.

28534243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23040, while the sum is 31.

The square root of 28534243 is about 5341.7453140336. The cubic root of 28534243 is about 305.5780241672.

The spelling of 28534243 in words is "twenty-eight million, five hundred thirty-four thousand, two hundred forty-three".