28258543 has 2 divisors, whose sum is σ = 28258544. Its totient is φ = 28258542.

The previous prime is 28258541. The next prime is 28258583. The reversal of 28258543 is 34585282.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28258543 - 2¹ = 28258541 is a prime.

Together with 28258541, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28258541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14129271 + 14129272.

It is an arithmetic number, because the mean of its divisors is an integer number (14129272).

Almost surely, 2^28258543 is an apocalyptic number.

28258543 is a deficient number, since it is larger than the sum of its proper divisors (1).

28258543 is an equidigital number, since it uses as much as digits as its factorization.

28258543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 76800, while the sum is 37.

The square root of 28258543 is about 5315.8765034564. The cubic root of 28258543 is about 304.5906647153.

The spelling of 28258543 in words is "twenty-eight million, two hundred fifty-eight thousand, five hundred forty-three".