28354847 has 2 divisors, whose sum is σ = 28354848. Its totient is φ = 28354846.

The previous prime is 28354811. The next prime is 28354871. The reversal of 28354847 is 74845382.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28354847 - 2⁸ = 28354591 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 (28354747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14177423 + 14177424.

It is an arithmetic number, because the mean of its divisors is an integer number (14177424).

Almost surely, 2^28354847 is an apocalyptic number.

28354847 is a deficient number, since it is larger than the sum of its proper divisors (1).

28354847 is an equidigital number, since it uses as much as digits as its factorization.

28354847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 215040, while the sum is 41.

The square root of 28354847 is about 5324.9269478557. The cubic root of 28354847 is about 304.9362833845.

The spelling of 28354847 in words is "twenty-eight million, three hundred fifty-four thousand, eight hundred forty-seven".