28566347 has 2 divisors, whose sum is σ = 28566348. Its totient is φ = 28566346.

The previous prime is 28566337. The next prime is 28566371. The reversal of 28566347 is 74366582.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28566347 - 2¹⁰ = 28565323 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28566337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14283173 + 14283174.

It is an arithmetic number, because the mean of its divisors is an integer number (14283174).

Almost surely, 2^28566347 is an apocalyptic number.

28566347 is a deficient number, since it is larger than the sum of its proper divisors (1).

28566347 is an equidigital number, since it uses as much as digits as its factorization.

28566347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 41.

The square root of 28566347 is about 5344.7494796295. The cubic root of 28566347 is about 305.6925835989.

The spelling of 28566347 in words is "twenty-eight million, five hundred sixty-six thousand, three hundred forty-seven".