28303343 has 2 divisors, whose sum is σ = 28303344. Its totient is φ = 28303342.

The previous prime is 28303337. The next prime is 28303357. The reversal of 28303343 is 34330382.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28303343 - 2¹⁸ = 28041199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28303313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14151671 + 14151672.

It is an arithmetic number, because the mean of its divisors is an integer number (14151672).

Almost surely, 2^28303343 is an apocalyptic number.

28303343 is a deficient number, since it is larger than the sum of its proper divisors (1).

28303343 is an equidigital number, since it uses as much as digits as its factorization.

28303343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 28303343 is about 5320.0886270813. The cubic root of 28303343 is about 304.7515418115.

The spelling of 28303343 in words is "twenty-eight million, three hundred three thousand, three hundred forty-three".