28471543 has 2 divisors, whose sum is σ = 28471544. Its totient is φ = 28471542.

The previous prime is 28471529. The next prime is 28471559. The reversal of 28471543 is 34517482.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28471543 - 2⁵ = 28471511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28471499 and 28471508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28471043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14235771 + 14235772.

It is an arithmetic number, because the mean of its divisors is an integer number (14235772).

Almost surely, 2^28471543 is an apocalyptic number.

28471543 is a deficient number, since it is larger than the sum of its proper divisors (1).

28471543 is an equidigital number, since it uses as much as digits as its factorization.

28471543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26880, while the sum is 34.

The square root of 28471543 is about 5335.8732181340. The cubic root of 28471543 is about 305.3540384005.

The spelling of 28471543 in words is "twenty-eight million, four hundred seventy-one thousand, five hundred forty-three".