28066343 has 2 divisors, whose sum is σ = 28066344. Its totient is φ = 28066342.

The previous prime is 28066333. The next prime is 28066349. The reversal of 28066343 is 34366082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28066343 - 2⁴ = 28066327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28066349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14033171 + 14033172.

It is an arithmetic number, because the mean of its divisors is an integer number (14033172).

Almost surely, 2^28066343 is an apocalyptic number.

28066343 is a deficient number, since it is larger than the sum of its proper divisors (1).

28066343 is an equidigital number, since it uses as much as digits as its factorization.

28066343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 28066343 is about 5297.7677374532. The cubic root of 28066343 is about 303.8985370941.

The spelling of 28066343 in words is "twenty-eight million, sixty-six thousand, three hundred forty-three".