28660543 has 2 divisors, whose sum is σ = 28660544. Its totient is φ = 28660542.

The previous prime is 28660519. The next prime is 28660559. The reversal of 28660543 is 34506682.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28660543 - 2⁹ = 28660031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28660499 and 28660508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28660043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14330271 + 14330272.

It is an arithmetic number, because the mean of its divisors is an integer number (14330272).

Almost surely, 2^28660543 is an apocalyptic number.

28660543 is a deficient number, since it is larger than the sum of its proper divisors (1).

28660543 is an equidigital number, since it uses as much as digits as its factorization.

28660543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 28660543 is about 5353.5542399419. The cubic root of 28660543 is about 306.0282166015.

The spelling of 28660543 in words is "twenty-eight million, six hundred sixty thousand, five hundred forty-three".