28060447 has 2 divisors, whose sum is σ = 28060448. Its totient is φ = 28060446.

The previous prime is 28060433. The next prime is 28060531. The reversal of 28060447 is 74406082.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28060447 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28060547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14030223 + 14030224.

It is an arithmetic number, because the mean of its divisors is an integer number (14030224).

Almost surely, 2^28060447 is an apocalyptic number.

28060447 is a deficient number, since it is larger than the sum of its proper divisors (1).

28060447 is an equidigital number, since it uses as much as digits as its factorization.

28060447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 28060447 is about 5297.2112474395. The cubic root of 28060447 is about 303.8772552423.

The spelling of 28060447 in words is "twenty-eight million, sixty thousand, four hundred forty-seven".